Tuesday, January 28, 2020

Gorgias


(483—375 B.C.E.)

GorgiasGorgias was a Sicilian philosopher, orator, and rhetorician. He is considered by many scholars to be one of the founders of sophism, a movement traditionally associated with philosophy, that emphasizes the practical application of rhetoric toward civic and political life. The sophists were itinerant teachers who accepted fees in return for instruction in oratory and rhetoric, and many claimed they could teach anything and its opposite (thesis and antithesis). Another aspect of their method was the ability to make the weaker argument the stronger. The term sophist in classical Greek was a general appellation denoting a "wise man." They were important figures in Greece in the 4th and 5th centuries, and their social success was great. Plato was the first to use the term rhêtorikê, while the sophists termed their "art" logos . Nevertheless, Gorgias is commonly associated with the development of rhetoric in classical Greece. The democratic process in Athens supplied the need for instruction in both rhetoric and philosophy.

Despite efforts by G.W.F Hegel and George Grote toward rehabilitating the reputations of Gorgias and the other sophists in the 19th century, the sophists still had a foul reputation well into the 20th century (as evidenced by the pejorative term "sophistry"). In 1930, French philosopher Jacques Maritain remarked "[s]ophistry is not a system of ideas, but a vicious attitude of the mind;" the sophists "came to consider as the most desirable form of knowledge the art of refuting and disproving by skillful arguments" (32-33). In recent years, however, modernists and post-structuralists have found great value in the philosophy of Gorgias, especially his theories on truth and language.

1. Life and Works
Gorgias (483-375 B.C.E.) came to Greece from Leontini in Sicily. Little is known of his life before he arrived in Athens in 427 B.C.E. as a political ambassador seeking military assistance against Syracuse, a city-state in Sicily. He delivered a series of speeches that dazzled the Athenian audiences and won him fame and admiration. Upon completion of his mission, he traveled throughout Greece as a teacher of rhetoric and as an orator, and according to Aristotle, spoke at the Panhellenic festivals (Art of Rhetoric 1414b29). He was a student of Empedocles, and according to Quintilian and others, was the teacher of Isocrates. Plato identifies Meno (Meno 76Aff) among the students of Gorgias, and he may have been one of Aspasia's instructors as well. Many of the sophists set up schools and charged fees in return for instruction in rhetoric, and Gorgias was no exception. Philostratus (Lives of the Sophists I 9, I) tells us that Gorgias began the practice of extemporaneous oratory, and that he had the boldness to say "'suggest a subject' ...he was the first to proclaim himself willing to take the chance, showing apparently that he knew everything and would trust the moment to speak on any subject." He died at the age of 108 at Larissa in Thessaly.

Four works are attributed to Gorgias: On the Nonexistent or On Nature, the Apology of Palamedes, the Encomium on Helen, and the Epitaphios or Athenian Funeral Oration. The original text of On Nature has been lost, and survives only in two different paraphrases, one in Sextus Empiricus' Against the Professors and another in an anonymous work entitled Melissus, Xenophanes, Gorgias. There are two different manuscripts of Palamedes and Helen (the Cripps and Palatine versions), one slightly different than the other. Legal historians consider the Defense of Palamedes to be an important contribution to dicanic [explanatory] argumentation, and some cultural historians believe the Epitaphios was used as a stylistic and genre source for Plato's Menexenus (Cosigny 2). Gorgias' rhyming style is highly poetic, and he viewed the orator as an individual leading a kind of group incantation. He employs metaphor and figurative expressions to illustrate his assertions, and even uses humor as one instrument of refutation. The term macrologia (using more words than necessary in an effort to appear eloquent) is sometimes used to describe his oratorical technique (Kennedy 63).

2. Philosophy
Any student of Gorgias must immediately mark the distinction between his philosophy as expressed by Plato in the dialogue Gorgias (see below) and his philosophy found within the three works: On the Nonexistent, the Apology of Palamedes, and the Encomium on Helen.

a. Ontology & Epistemology
Nowhere is Gorgias' sophistical love of paradox more evident than in the short treatise On the Nonexistent or On Nature. The subject of this work is ontological (concerning nature of being), but it also deals with language and epistemology (the study of the nature and limitations of knowledge). In addition to this, it can be understood as an exercise in sophistical rhetoric; Gorgias tackles an argument that is seemingly impossible to refute, namely that, after considering our world, we must come to the conclusion that "things exist." His powerful argument to the contrary proves his abilities as a master of oratory, and some believe the text was used as an advertisement of his credentials.

Gorgias begins his argument by presenting a logical contradiction, "if the nonexistent exists, it will both exist and not exist at the same time" (B3.67) (a violation of the principle of non-contradiction). He then denies that existence (to on) itself exists, for if it exists, it is either eternal or generated. If it is eternal, it has no beginning, and is therefore without limit. If it is without limit, it is "nowhere" (B3.69), and hence does not exist. And if existence is generated, it must come from something, and that something is existence, which is another contradiction. Likewise, nonexistence (to mê on) cannot produce anything (B3.71). The sophist then explains that existence can neither be "one" (hen) or "many" (polla), since if it were one, it would be divisible, and therefore not one. If it were many, it would be a "composite of separate entities" (B3.74) and no longer the thing known as existence.

Gorgias then turns his attention to what is knowable and comprehensible. He remarks, "if things considered [imagined or thought] in the mind are not existent, the existent is not considered" (B3.77), that is to say, existence is incomprehensible. This supposition is backed up by the fact that one can imagine chariots racing in the sea, but that does not make such a thing happen. The operation of the mind (intellection) is fundamentally distinct from what happens in the real world; "the existent is not an object of consideration and is not apprehended" (B3.82). It is helpful to think of apprehension here in Aristotelian terms, as simple apprehension, the first operation of reasoning (logic) in which the intellect "grasps" or "apprehends" something. Simple apprehension happens when the mind first forms a concept of something in the world, and is anterior to judgment.

Finally, Gorgias proclaims that even if existence could be apprehended, "it would be incapable of being conveyed to another" (B3.83). This is because what we reveal to another is not an external substance, but is merely logos (from the Greek verb lego, "to say"--see below). Logos is not "substances and existing things" (B3.84). External reality becomes the revealer of logos (B3.85); while we can know logos, we cannot apprehend things directly. The color white, for instance, goes from a property of a thing, to a mental representation, and the representation is different than the thing itself. In its summation, this nihilistic argument becomes a "trilemma":

i. Nothing exists
ii. Even if existence exists, it cannot be known
iii. Even if it could be known, it cannot be communicated.

This argument has led some to label Gorgias as either an ontological skeptic or a nihilist (one who believes nothing exists, or that the world is incomprehensible, and that the concept of truth is fictitious). But it can also be interpreted as an assertion that it is logos and logos alone which is the proper object of our inquiries, since it is the only thing we can really know. On Nature is sometimes seen as a refutation of pre-Socratic essentialist philosophy (McComiskey 37).

b. Rhetorical Theory
Most of what we know concerning Gorgias' views on rhetoric comes from the Encomium. This work can be understood as a sophistical effort to rehabilitate the reputation of Helen of Troy. In it, Gorgias attempts to take the weaker argument and make it the stronger one, by arguing for a position contrary to well-established opinion: in this case, the opinion that Helen was to blame for the Trojan War. Gorgias argues that Helen succumbed either to (a) physical force (Paris' abduction), (b) love (eros), or (c) verbal persuasion (logos), and in any instance, she cannot be blamed for her actions. According to Gorgias, logos is a powerful force that can be used nefariously to convince people to do things against their own interests. It can take the form of poetry (metrical language), divine incantations, or oratory. Logos is described as a "powerful lord" (B11.8) and "[t]he effect of speech upon the condition of the soul is comparable to the power of drugs over the nurture of bodies" (B11.14). This should be contrasted with the view of Isocrates that logos is a "chief" or "commander" (Nicoles 5-9). The difference here is subtle, but Gorgias' dynastic concept of logos clearly turns it into a despotic overlord, while Isocrates' "commander" is a leader with delegated authority, an individual who fights along side his troops.

Examples of persuasive speech, according to Gorgias, are the "conflicts among the philosophers’ arguments in which the swiftness of demonstration and judgment make the belief in any opinion changeable" (B11.13). This is similar to the assertion of Sextus Empiricus that equally convincing arguments can be formed against, or in favor of, any subject. Gorgias may have believed in a relative notion of truth that was contingent upon a particular kairos (an opportune moment or "opening"), that is to say, truth can only be found within a given moment. He seems to reject the idea of truth as a philosophically universal principle, and thus comes into conflict with Plato and Aristotle. Nevertheless, the rhetor (orator) is ethically obligated to avoid deception, and it is "the duty of the same man both to declare what he should rightly and to refute what has been spoken falsely" (B11.2). Ultimately, Gorgias’ opinion concerning truth is difficult to ascertain, but from his writings, we can conclude that he was more concerned with rhetorical argument than the truth of any given proposition or assertion.

In the epideictic speech Defense of Palamedes, Gorgias uses a mythical narrator (Palamedes) to further illustrate his rhetorical technique and philosophy. In the Odyssey, Palamedes was responsible for revealing Odysseus' "madness" as a fiction, an act for which the latter never forgave him. Ultimately, Palamedes was executed for treason, after Odysseus accused him of conspiring with the Trojans. Gorgias focuses on the invention of arguments (topoi) necessary to exonerate Palamedes within the setting of a fictional trial, all of which depend upon probability. Palamedes could not have committed treason with a foreign power since he speaks no language other than Greek (B11a.6-7), and no Greek desires social power among barbarians (B11a.13). In the second example, we see that topoi "embody the values of the community, in the sense that they comprise what the community considers important" (Cosigny 84). A fundamental difference between the topoi found within Aristotle's Art of Rhetoric and Gorgias' topoi is that Aristotle's are "acontextual, while Gorgias places his in the narrative context of the Palamedes myth" (McComiskey 49). Therefore, there is a direct relationship between kairos and invention.

Gorgias rejects the use of pathos (emotional appeal) in his Defense, with the assertion that "among you, who are the foremost of the Greeks ...there is no need to persuade such ones as you with the aid of friends and sorrowful prayers and lamentations" (B11a.33). He prefers to use ethos (ethical appeal, or arguments from character) and logos, as his instruments of persuasion.

3. Critics
Gorgias' most famous critic is Plato. In the dialogue Gorgias, Plato (through his mentor Socrates) expresses his contempt for sophistical rhetoric; all rhetoric is "a phantom of a branch of statesmanship (463d) ...a kind of flattery ...that is contemptible," because its aim is simply pleasure rather than the welfare of the public. Nor can rhetoric be considered an art (technê), since it is irrational (465a). The end result of rhetoric is a cosmetic alteration of language that conceals truth and falsity (465b). Furthermore, rhetoric is "designed to produce conviction, but not educate people, about matters of right or wrong (455a). The character of Gorgias in the dialogue is forced to admit that his "art" deals with opinion (doxa) rather than knowledge (epistemê); that its intention is to persuade rather than to instruct, and that rhetoric deals with language without regard to content. Gorgias is portrayed as a man with an ambivalent attitude towards truth, a relativist, who boldly asserts that it does not matter if one truly has knowledge of any given subject, only that he is perceived by others to have knowledge, and that "[r]hetoric is the only area of expertise you need to learn. You can ignore all the rest and still get the better of the professionals!" (459c).

There are a number of explanations for Plato's antipathy towards sophistic rhetoric. The first is simply philosophical; Plato was not a relativist, nor did he believe rhetoric had a pedagogical value. But there is also a political element to be considered. Bruce McComiskey points out that Plato believed in an "oligarchic government" for Athens, while many of the sophists "favored the Athenian Democracy the way it was" (20). It is important to point out that during Gorgias' lifetime, both Leontini and Athens were democratic city states and a loose alliance existed between the two. On a more practical level, the Greek city states also served as a market for those who would sell instruction in rhetoric.

Aristotle dismisses Gorgias as a "frigid" stylist who indulges in excessive use of compound words such as "begging-poet-flatterers" and "foresworn and well-sworn" (Art of Rhetoric 1405b34). He also faults Gorgias for overly poetic language (1406b4), and we can see examples of this in Gorgias' description of logos as a great dynast or lord (B11.8) and as a "drug" (B11.14). The sophist compares orators to "frogs croaking in water"(B3.30), and philosophers to the "suitors of Penelope" (B3.29).

Despite efforts by G.W.F Hegel and George Grote toward rehabilitating the reputations of Gorgias and the other sophists in the 19th century, the sophists still had a foul reputation well into the 20th century (as evidenced by the pejorative term "sophistry"). In 1930, French philosopher Jacques Maritain remarked "[s]ophistry is not a system of ideas, but a vicious attitude of the mind;" the sophists "came to consider as the most desirable form of knowledge the art of refuting and disproving by skillful arguments" (32-33). In recent years, however, modernists and post-structuralists have found great value in the philosophy of Gorgias, especially his theories on truth and language.

Sunday, January 26, 2020

Sir Francis Bacon, Life and Thought


Sir Francis Bacon (later Lord Verulam and the Viscount St. Albans) was an English lawyer, statesman, essayist, historian, intellectual reformer, philosopher, and champion of modern science. Early in his career he claimed “all knowledge as his province” and afterwards dedicated himself to a wholesale revaluation and re-structuring of traditional learning. To take the place of the established tradition (a miscellany of Scholasticism, humanism, and natural magic), he proposed an entirely new system based on empirical and inductive principles and the active development of new arts and inventions, a system whose ultimate goal would be the production of practical knowledge for “the use and benefit of men” and the relief of the human condition.

At the same time that he was founding and promoting this new project for the advancement of learning, Bacon was also moving up the ladder of state service. His career aspirations had been largely disappointed under Elizabeth I, but with the ascension of James his political fortunes rose. Knighted in 1603, he was then steadily promoted to a series of offices, including Solicitor General (1607), Attorney General (1613), and eventually Lord Chancellor (1618). While serving as Chancellor, he was indicted on charges of bribery and forced to leave public office. He then retired to his estate where he devoted himself full time to his continuing literary, scientific, and philosophical work. He died in 1626, leaving behind a cultural legacy that, for better or worse, includes most of the foundation for the triumph of technology and for the modern world as we currently know it.

1. Life and Political Career
Sir Francis Bacon (later Lord Verulam, the Viscount St. Albans, and Lord Chancellor of England) was born in London in 1561 to a prominent and well-connected family. His parents were Sir Nicholas Bacon, the Lord Keeper of the Seal, and Lady Anne Cooke, daughter of Sir Anthony Cooke, a knight and one-time tutor to the royal family. Lady Anne was a learned woman in her own right, having acquired Greek and Latin as well as Italian and French. She was a sister-in-law both to Sir Thomas Hoby, the esteemed English translator of Castiglione, and to Sir William Cecil (later Lord Burghley), Lord Treasurer, chief counselor to Elizabeth I, and from 1572-1598 the most powerful man in England.

Bacon was educated at home at the family estate at Gorhambury in Herfordshire. In 1573, at the age of just twelve, he entered Trinity College, Cambridge, where the stodgy Scholastic curriculum triggered his lifelong opposition to Aristotelianism (though not to the works of Aristotle himself).

In 1576 Bacon began reading law at Gray’s Inn. Yet only a year later he interrupted his studies in order to take a position in the diplomatic service in France as an assistant to the ambassador. In 1579, while he was still in France, his father died, leaving him (as the second son of a second marriage and the youngest of six heirs) virtually without support. With no position, no land, no income, and no immediate prospects, he returned to England and resumed the study of law.

Bacon completed his law degree in 1582, and in 1588 he was named lecturer in legal studies at Gray’s Inn. In the meantime, he was elected to Parliament in 1584 as a member for Melcombe in Dorsetshire. He would remain in Parliament as a representative for various constituencies for the next 36 years.

In 1593 his blunt criticism of a new tax levy resulted in an unfortunate setback to his career expectations, the Queen taking personal offense at his opposition. Any hopes he had of becoming Attorney General or Solicitor General during her reign were dashed, though Elizabeth eventually relented to the extent of appointing Bacon her Extraordinary Counsel in 1596.

It was around this time that Bacon entered the service of Robert Devereux, the Earl of Essex, a dashing courtier, soldier, plotter of intrigue, and sometime favorite of the Queen. No doubt Bacon viewed Essex as a rising star and a figure who could provide a much-needed boost to his own sagging career. Unfortunately, it was not long before Essex’s own fortunes plummeted following a series of military and political blunders culminating in a disastrous coup attempt. When the coup plot failed, Devereux was arrested, tried, and eventually executed, with Bacon, in his capacity as Queen’s Counsel, playing a vital role in the prosecution of the case.

In 1603, James I succeeded Elizabeth, and Bacon’s prospects for advancement dramatically improved. After being knighted by the king, he swiftly ascended the ladder of state and from 1604-1618 filled a succession of high-profile advisory positions:

1604 – Appointed King’s Counsel.
1607 – Named Solicitor General.
1608 – Appointed Clerk of the Star Chamber.
1613 – Appointed Attorney General.
1616 – Made a member of the Privy Council.
1617 – Appointed Lord Keeper of the Royal Seal (his father’s former office).
1618 – Made Lord Chancellor.
As Lord Chancellor, Bacon wielded a degree of power and influence that he could only have imagined as a young lawyer seeking preferment. Yet it was at this point, while he stood at the very pinnacle of success, that he suffered his great Fall. In 1621 he was arrested and charged with bribery. After pleading guilty, he was heavily fined and sentenced to a prison term in the Tower of London. Although the fine was later waived and Bacon spent only four days in the Tower, he was never allowed to sit in Parliament or hold political office again.

The entire episode was a terrible disgrace for Bacon personally and a stigma that would cling to and injure his reputation for years to come. As various chroniclers of the case have pointed out, the accepting of gifts from suppliants in a law suit was a common practice in Bacon’s day, and it is also true that Bacon ended up judging against the two petitioners who had offered the fateful bribes. Yet the damage was done, and Bacon to his credit accepted the judgment against him without excuse. According to his own Essayes, or Counsels, he should have known and done better. (In this respect it is worth noting that during his forced retirement, Bacon revised and republished the Essayes, injecting an even greater degree of shrewdness into a collection already notable for its worldliness and keen political sense.) Macaulay in a lengthy essay declared Bacon a great intellect but (borrowing a phrase from Bacon’s own letters) a “most dishonest man,” and more than one writer has characterized him as cold, calculating, and arrogant. Yet whatever his flaws, even his enemies conceded that during his trial he accepted his punishment nobly, and moved on.

Bacon spent his remaining years working with renewed determination on his lifelong project: the reform of learning and the establishment of an intellectual community dedicated to the discovery of scientific knowledge for the “use and benefit of men.” The former Lord Chancellor died on 9 April, 1626, supposedly of a cold or pneumonia contracted while testing his theory of the preservative and insulating properties of snow.

2. Thought and Writings
In a way Bacon’s descent from political power was a fortunate fall, for it represented a liberation from the bondage of public life resulting in a remarkable final burst of literary and scientific activity. As Renaissance scholar and Bacon expert Brian Vickers has reminded us, Bacon’s earlier works, impressive as they are, were essentially products of his “spare time.” It was only during his last five years that he was able to concentrate exclusively on writing and produce, in addition to a handful of minor pieces:

Two substantial volumes of history and biography, The History of the Reign of King Henry the Seventh and The History of the Reign of King Henry the Eighth.
De Augmentis Scientiarum (an expanded Latin version of his earlier Advancement of Learning).
The final 1625 edition of his Essayes, or Counsels.
The remarkable Sylva Sylvarum, or A Natural History in Ten Centuries (a curious hodge-podge of scientific experiments, personal observations, speculations, ancient teachings, and analytical discussions on topics ranging from the causes of hiccups to explanations for the shortage of rain in Egypt). Artificially divided into ten “centuries” (that is, ten chapters, each consisting of one hundred items), the work was apparently intended to be included in Part Three of the Magna Instauratio.
His utopian science-fiction novel The New Atlantis, which was published in unfinished form a year after his death.
Various parts of his unfinished magnum opus Magna Instauratio (or Great Instauration), including a “Natural History of Winds” and a “Natural History of Life and Death.”
These late productions represented the capstone of a writing career that spanned more than four decades and encompassed virtually an entire curriculum of literary, scientific, and philosophical studies.

a. Literary Works
Despite the fanatical claims (and very un-Baconian credulity) of a few admirers, it is a virtual certainty that Bacon did not write the works traditionally attributed to William Shakespeare. Even so, the Lord Chancellor’s high place in the history of English literature as well as his influential role in the development of English prose style remain well-established and secure. Indeed even if Bacon had produced nothing else but his masterful Essayes (first published in 1597 and then revised and expanded in 1612 and 1625), he would still rate among the top echelon of 17th-century English authors. And so when we take into account his other writings, e.g., his histories, letters, and especially his major philosophical and scientific works, we must surely place him in the first rank of English literature’s great men of letters and among its finest masters (alongside names like Johnson, Mill, Carlyle, and Ruskin) of non-fiction prose.

Bacon’s style, though elegant, is by no means as simple as it seems or as it is often described. In fact it is actually a fairly complex affair that achieves its air of ease and clarity more through its balanced cadences, natural metaphors, and carefully arranged symmetries than through the use of plain words, commonplace ideas, and straightforward syntax. (In this connection it is noteworthy that in the revised versions of the essays Bacon seems to have deliberately disrupted many of his earlier balanced effects to produce a style that is actually more jagged and, in effect, more challenging to the casual reader.)

Furthermore, just as Bacon’s personal style and living habits were prone to extravagance and never particularly austere, so in his writing he was never quite able to resist the occasional grand word, magniloquent phrase, or orotund effect. (As Dr. Johnson observed, “A dictionary of the English language might be compiled from Bacon’s works alone.”) Bishop Sprat in his 1667 History of the Royal Society honored Bacon and praised the society membership for supposedly eschewing fine words and fancy metaphors and adhering instead to a natural lucidity and “mathematical plainness.” To write in such a way, Sprat suggested, was to follow true, scientific, Baconian principles. And while Bacon himself often expressed similar sentiments (praising blunt expression while condemning the seductions of figurative language), a reader would be hard pressed to find many examples of such spare technique in Bacon’s own writings. Of Bacon’s contemporary readers, at least one took exception to the view that his writing represented a perfect model of plain language and transparent meaning. After perusing the New Organon, King James (to whom Bacon had proudly dedicated the volume) reportedly pronounced the work “like the peace of God, which passeth all understanding.”

b. The New Atlantis
As a work of narrative fiction, Bacon’s novel New Atlantis may be classified as a literary rather than a scientific (or philosophical) work, though it effectively belongs to both categories. According to Bacon’s amanuensis and first biographer William Rawley, the novel represents the first part (showing the design of a great college or institute devoted to the interpretation of nature) of what was to have been a longer and more detailed project (depicting the entire legal structure and political organization of an ideal commonwealth). The work thus stands in the great tradition of the utopian-philosophical novel that stretches from Plato and More to Huxley and Skinner.

The thin plot or fable is little more than a fictional shell to contain the real meat of Bacon’s story: the elaborate description of Salomon’s House (also known as the College of the Six Days Works), a centrally organized research facility where specially trained teams of investigators collect data, conduct experiments, and (most importantly from Bacon’s point of view) apply the knowledge they gain to produce “things of use and practice for man’s life.” These new arts and inventions they eventually share with the outside world.

In terms of its sci-fi adventure elements, the New Atlantis is about as exciting as a government or university re-organization plan. But in terms of its historical impact, the novel has proven to be nothing less than revolutionary, having served not only as an effective inspiration and model for the British Royal Society, but also as an early blueprint and prophecy of the modern research center and international scientific community.

c. Scientific and Philosophical Works
It is never easy to summarize the thought of a prolific and wide-ranging philosopher. Yet Bacon somewhat simplifies the task by his own helpful habits of systematic classification and catchy mnemonic labeling. (Thus, for example, there are three “distempers” – or diseases – of learning,” eleven errors or “peccant humours,” four “Idols,” three primary mental faculties and categories of knowledge, etc.) In effect, by following Bacon’s own methods it is possible to produce a convenient outline or overview of his main scientific and philosophical ideas.

d. The Great Instauration
As early as 1592, in a famous letter to his uncle, Lord Burghley, Bacon declared “all knowledge” to be his province and vowed his personal commitment to a plan for the full-scale rehabilitation and reorganization of learning. In effect, he dedicated himself to a long-term project of intellectual reform, and the balance of his career can be viewed as a continuing effort to make good on that pledge. In 1620, while he was still at the peak of his political success, he published the preliminary description and plan for an enormous work that would fully answer to his earlier declared ambitions. The work, dedicated to James, was to be called Magna Instauratio (that is, the “grand edifice” or Great Instauration), and it would represent a kind of summa or culmination of all Bacon’s thought on subjects ranging from logic and epistemology to practical science (or what in Bacon’s day was called “natural philosophy,” the word science being then but a general synonym for “wisdom” or “learning”).

Like several of Bacon’s projects, the Instauratio in its contemplated form was never finished. Of the intended six parts, only the first two were completed, while the other portions were only partly finished or barely begun. Consequently, the work as we have it is less like the vast but well-sculpted monument that Bacon envisioned than a kind of philosophical miscellany or grab-bag. Part I of the project, De Dignitate et Augmentis Scientiarum (“Nine Books of the Dignity and Advancement of Learning”), was published in 1623. It is basically an enlarged version of the earlier Proficience and Advancement of Learning, which Bacon had presented to James in 1605. Part II, the Novum Organum (or “New Organon”) provides the author’s detailed explanation and demonstration of the correct procedure for interpreting nature. It first appeared in 1620. Together these two works present the essential elements of Bacon’s philosophy, including most of the major ideas and principles that we have come to associate with the terms “Baconian” and “Baconianism.”

e. The Advancement of Learning
Relatively early in his career Bacon judged that, owing mainly to an undue reverence for the past (as well as to an excessive absorption in cultural vanities and frivolities), the intellectual life of Europe had reached a kind of impasse or standstill. Yet he believed there was a way beyond this stagnation if persons of learning, armed with new methods and insights, would simply open their eyes and minds to the world around them. This at any rate was the basic argument of his seminal 1605 treatise The Proficience and Advancement of Learning, arguably the first important philosophical work to be published in English.

It is in this work that Bacon sketched out the main themes and ideas that he continued to refine and develop throughout his career, beginning with the notion that there are clear obstacles to or diseases of learning that must be avoided or purged before further progress is possible.

f. The “Distempers” of Learning
“There be therefore chiefly three vanities in studies, whereby learning hath been most traduced.” Thus Bacon, in the first book of the Advancement. He goes on to refer to these vanities as the three “distempers” of learning and identifies them (in his characteristically memorable fashion) as “fantastical learning,” “contentious learning,” and “delicate learning” (alternatively identified as “vain imaginations,” “vain altercations,” and “vain affectations”).

By fantastical learning (“vain imaginations”) Bacon had in mind what we would today call pseudo-science: i.e., a collection of ideas that lack any real or substantial foundation, that are professed mainly by occultists and charlatans, that are carefully shielded from outside criticism, and that are offered largely to an audience of credulous true believers. In Bacon’s day such “imaginative science” was familiar in the form of astrology, natural magic, and alchemy.

By contentious learning (“vain altercations”) Bacon was referring mainly to Aristotelian philosophy and theology and especially to the Scholastic tradition of logical hair-splitting and metaphysical quibbling. But the phrase applies to any intellectual endeavor in which the principal aim is not new knowledge or deeper understanding but endless debate cherished for its own sake.

Delicate learning (“vain affectations”) was Bacon’s label for the new humanism insofar as (in his view) it seemed concerned not with the actual recovery of ancient texts or the retrieval of past knowledge but merely with the revival of Ciceronian rhetorical embellishments and the reproduction of classical prose style. Such preoccupation with “words more than matter,” with “choiceness of phrase” and the “sweet falling of clauses” – in short, with style over substance – seemed to Bacon (a careful stylist in his own right) the most seductive and decadent literary vice of his age.

Here we may note that from Bacon’s point of view the “distempers” of learning share two main faults:

Prodigal ingenuity – i.e., each distemper represents a lavish and regrettable waste of talent, as inventive minds that might be employed in more productive pursuits exhaust their energy on trivial or puerile enterprises instead.
Sterile results – i.e., instead of contributing to the discovery of new knowledge (and thus to a practical “advancement of learning” and eventually to a better life for all), the distempers of learning are essentially exercises in personal vainglory that aim at little more than idle theorizing or the preservation of older forms of knowledge.
In short, in Bacon’s view the distempers impede genuine intellectual progress by beguiling talented thinkers into fruitless, illusory, or purely self-serving ventures. What is needed – and this is a theme reiterated in all his later writings on learning and human progress – is a program to re-channel that same creative energy into socially useful new discoveries.

g. The Idea of Progress
Though it is hard to pinpoint the birth of an idea, for all intents and purposes the modern idea of technological “progress” (in the sense of a steady, cumulative, historical advance in applied scientific knowledge) began with Bacon’s The Advancement of Learning and became fully articulated in his later works.

Knowledge is power, and when embodied in the form of new technical inventions and mechanical discoveries it is the force that drives history – this was Bacon’s key insight. In many respects this idea was his single greatest invention, and it is all the more remarkable for its having been conceived and promoted at a time when most English and European intellectuals were either reverencing the literary and philosophical achievements of the past or deploring the numerous signs of modern degradation and decline. Indeed, while Bacon was preaching progress and declaring a brave new dawn of scientific advance, many of his colleagues were persuaded that the world was at best creaking along towards a state of senile immobility and eventual darkness. “Our age is iron, and rusty too,” wrote John Donne, contemplating the signs of universal decay in a poem published six years after Bacon’s Advancement.

That history might in fact be progressive, i.e., an onward and upward ascent – and not, as Aristotle had taught, merely cyclical or, as cultural pessimists from Hesiod to Spengler have supposed, a descending or retrograde movement, became for Bacon an article of secular faith which he propounded with evangelical force and a sense of mission. In the Advancement, the idea is offered tentatively, as a kind of hopeful hypothesis. But in later works such as the New Organon, it becomes almost a promised destiny: Enlightenment and a better world, Bacon insists, lie within our power; they require only the cooperation of learned citizens and the active development of the arts and sciences.

h. The Reclassification of Knowledge
In Book II of De Dignitate (his expanded version of the Advancement) Bacon outlines his scheme for a new division of human knowledge into three primary categories: History, Poesy, and Philosophy (which he associates respectively with the three fundamental “faculties” of mind – memory, imagination, and reason). Although the exact motive behind this reclassification remains unclear, one of its main consequences seems unmistakable: it effectively promotes philosophy – and especially Baconian science – above the other two branches of knowledge, in essence defining history as the mere accumulation of brute facts, while reducing art and imaginative literature to the even more marginal status of “feigned history.”

Evidently Bacon believed that in order for a genuine advancement of learning to occur, the prestige of philosophy (and particularly natural philosophy) had to be elevated, while that of history and literature (in a word, humanism) needed to be reduced. Bacon’s scheme effectively accomplishes this by making history (the domain of fact, i.e., of everything that has happened) a virtual sub-species of philosophy (the domain of realistic possibility, i.e., of everything that can theoretically or actually occur). Meanwhile, poesy (the domain of everything that is imaginable or conceivable) is set off to the side as a mere illustrative vehicle. In essence, it becomes simply a means of recreating actual scenes or events from the past (as in history plays or heroic poetry) or of allegorizing or dramatizing new ideas or future possibilities (as in Bacon’s own interesting example of “parabolic poesy,” the New Atlantis.)

i. The New Organon
To the second part of his Great Instauration Bacon gave the title New Organon (or “True Directions concerning the Interpretation of Nature”). The Greek word organon means “instrument” or “tool,” and Bacon clearly felt he was supplying a new instrument for guiding and correcting the mind in its quest for a true understanding of nature. The title also glances at Aristotle’s Organon (a collection that includes his Categories and his Prior and Posterior Analytics) and thus suggests a “new instrument” destined to transcend or replace the older, no longer serviceable one. (This notion of surpassing ancient authority is aptly illustrated on the frontispiece of the 1620 volume containing the New Organon by a ship boldly sailing beyond the mythical pillars of Hercules, which supposedly marked the end of the known world.)

The New Organon is presented not in the form of a treatise or methodical demonstration but as a series of aphorisms, a technique that Bacon came to favor as less legislative and dogmatic and more in the true spirit of scientific experiment and critical inquiry. Combined with his gift for illustrative metaphor and symbol, the aphoristic style makes the New Organon in many places the most readable and literary of all Bacon’s scientific and philosophical works.

j. The Idols
In Book I of the New Organon (Aphorisms 39-68), Bacon introduces his famous doctrine of the “idols.” These are characteristic errors, natural tendencies, or defects that beset the mind and prevent it from achieving a full and accurate understanding of nature. Bacon points out that recognizing and counteracting the idols is as important to the study of nature as the recognition and refutation of bad arguments is to logic. Incidentally, he uses the word “idol” – from the Greek eidolon (“image” or “phantom”) – not in the sense of a false god or heathen deity but rather in the sense employed in Epicurean physics. Thus a Baconian idol is a potential deception or source of misunderstanding, especially one that clouds or confuses our knowledge of external reality.

Bacon identifies four different classes of idol. Each arises from a different source, and each presents its own special hazards and difficulties.

1. The Idols of the Tribe.

These are the natural weaknesses and tendencies common to human nature. Because they are innate, they cannot be completely eliminated, but only recognized and compensated for. Some of Bacon’s examples are:

Our senses – which are inherently dull and easily deceivable. (Which is why Bacon prescribes instruments and strict investigative methods to correct them.)
Our tendency to discern (or even impose) more order in phenomena than is actually there. As Bacon points out, we are apt to find similitude where there is actually singularity, regularity where there is actually randomness, etc.
Our tendency towards “wishful thinking.” According to Bacon, we have a natural inclination to accept, believe, and even prove what we would prefer to be true.
Our tendency to rush to conclusions and make premature judgments (instead of gradually and painstakingly accumulating evidence).
2. The Idols of the Cave.

Unlike the idols of the tribe, which are common to all human beings, those of the cave vary from individual to individual. They arise, that is to say, not from nature but from culture and thus reflect the peculiar distortions, prejudices, and beliefs that we are all subject to owing to our different family backgrounds, childhood experiences, education, training, gender, religion, social class, etc. Examples include:

Special allegiance to a particular discipline or theory.
High esteem for a few select authorities.
A “cookie-cutter” mentality – that is, a tendency to reduce or confine phenomena within the terms of our own narrow training or discipline.
3. The Idols of the Market Place.

These are hindrances to clear thinking that arise, Bacon says, from the “intercourse and association of men with each other.” The main culprit here is language, though not just common speech, but also (and perhaps particularly) the special discourses, vocabularies, and jargons of various academic communities and disciplines. He points out that “the idols imposed by words on the understanding are of two kinds”: “they are either names of things that do not exist” (e.g., the crystalline spheres of Aristotelian cosmology) or faulty, vague, or misleading names for things that do exist (according to Bacon, abstract qualities and value terms – e.g., “moist,” “useful,” etc. – can be a particular source of confusion).

4. The Idols of the Theatre.

Like the idols of the cave, those of the theatre are culturally acquired rather than innate. And although the metaphor of a theatre suggests an artificial imitation of truth, as in drama or fiction, Bacon makes it clear that these idols derive mainly from grand schemes or systems of philosophy – and especially from three particular types of philosophy:

Sophistical Philosophy – that is, philosophical systems based only on a few casually observed instances (or on no experimental evidence at all) and thus constructed mainly out of abstract argument and speculation. Bacon cites Scholasticism as a conspicuous example.

Empirical Philosophy – that is, a philosophical system ultimately based on a single key insight (or on a very narrow base of research), which is then erected into a model or paradigm to explain phenomena of all kinds. Bacon cites the example of William Gilbert, whose experiments with the lodestone persuaded him that magnetism operated as the hidden force behind virtually all earthly phenomena.

Superstitious Philosophy – this is Bacon’s phrase for any system of thought that mixes theology and philosophy. He cites Pythagoras and Plato as guilty of this practice, but also points his finger at pious contemporary efforts, similar to those of Creationists today, to found systems of natural philosophy on Genesis or the book of Job.

k. Induction
At the beginning of the Magna Instauratio and in Book II of the New Organon, Bacon introduces his system of “true and perfect Induction,” which he proposes as the essential foundation of scientific method and a necessary tool for the proper interpretation of nature. (This system was to have been more fully explained and demonstrated in Part IV of the Instauratio in a section titled “The Ladder of the Intellect,” but unfortunately the work never got beyond an introduction.)

According to Bacon, his system differs not only from the deductive logic and mania for syllogisms of the Schoolmen, but also from the classic induction of Aristotle and other logicians. As Bacon explains it, classic induction proceeds “at once from . . . sense and particulars up to the most general propositions” and then works backward (via deduction) to arrive at intermediate propositions. Thus, for example, from a few observations one might conclude (via induction) that “all new cars are shiny.” One would then be entitled to proceed backward from this general axiom to deduce such middle-level axioms as “all new Lexuses are shiny,” “all new Jeeps are shiny,” etc. – axioms that presumably would not need to be verified empirically since their truth would be logically guaranteed as long as the original generalization (“all new cars are shiny”) is true.

As Bacon rightly points out, one problem with this procedure is that if the general axioms prove false, all the intermediate axioms may be false as well. All it takes is one contradictory instance (in this case one new car with a dull finish) and “the whole edifice tumbles.” For this reason Bacon prescribes a different path. His method is to proceed “regularly and gradually from one axiom to another, so that the most general are not reached till the last.” In other words, each axiom – i.e., each step up “the ladder of intellect” – is thoroughly tested by observation and experimentation before the next step is taken. In effect, each confirmed axiom becomes a foothold to a higher truth, with the most general axioms representing the last stage of the process.

Thus, in the example described, the Baconian investigator would be obliged to examine a full inventory of new Chevrolets, Lexuses, Jeeps, etc., before reaching any conclusions about new cars in general. And while Bacon admits that such a method can be laborious, he argues that it eventually produces a stable edifice of knowledge instead of a rickety structure that collapses with the appearance of a single disconfirming instance. (Indeed, according to Bacon, when one follows his inductive procedure, a negative instance actually becomes something to be welcomed rather than feared. For instead of threatening an entire assembly, the discovery of a false generalization actually saves the investigator the trouble of having to proceed further in a particular direction or line of inquiry. Meanwhile the structure of truth that he has already built remains intact.)

Is Bacon’s system, then, a sound and reliable procedure, a strong ladder leading from carefully observed particulars to true and “inevitable” conclusions? Although he himself firmly believed in the utility and overall superiority of his method, many of his commentators and critics have had doubts. For one thing, it is not clear that the Baconian procedure, taken by itself, leads conclusively to any general propositions, much less to scientific principles or theoretical statements that we can accept as universally true. For at what point is the Baconian investigator willing to make the leap from observed particulars to abstract generalizations? After a dozen instances? A thousand? The fact is, Bacon’s method provides nothing to guide the investigator in this determination other than sheer instinct or professional judgment, and thus the tendency is for the investigation of particulars – the steady observation and collection of data – to go on continuously, and in effect endlessly.

One can thus easily imagine a scenario in which the piling up of instances becomes not just the initial stage in a process, but the very essence of the process itself; in effect, a zealous foraging after facts (in the New Organon Bacon famously compares the ideal Baconian researcher to a busy bee) becomes not only a means to knowledge, but an activity vigorously pursued for its own sake. Every scientist and academic person knows how tempting it is to put off the hard work of imaginative thinking in order to continue doing some form of rote research. Every investigator knows how easy it is to become wrapped up in data – with the unhappy result that one’s intended ascent up the Baconian ladder gets stuck in mundane matters of fact and never quite gets off the ground.

It was no doubt considerations like these that prompted the English physician (and neo-Aristotelian) William Harvey, of circulation-of-the-blood fame, to quip that Bacon wrote of natural philosophy “like a Lord Chancellor” – indeed like a politician or legislator rather than a practitioner. The assessment is just to the extent that Bacon in the New Organon does indeed prescribe a new and extremely rigid procedure for the investigation of nature rather than describe the more or less instinctive and improvisational – and by no means exclusively empirical – method that Kepler, Galileo, Harvey himself, and other working scientists were actually employing. In fact, other than Tycho Brahe, the Danish astronomer who, overseeing a team of assistants, faithfully observed and then painstakingly recorded entire volumes of astronomical data in tidy, systematically arranged tables, it is doubtful that there is another major figure in the history of science who can be legitimately termed an authentic, true-blooded Baconian. (Darwin, it is true, claimed that The Origin of Species was based on “Baconian principles.” However, it is one thing to collect instances in order to compare species and show a relationship among them; it is quite another to theorize a mechanism, namely evolution by mutation and natural selection, that elegantly and powerfully explains their entire history and variety.)

Science, that is to say, does not, and has probably never advanced according to the strict, gradual, ever-plodding method of Baconian observation and induction. It proceeds instead by unpredictable – and often intuitive and even (though Bacon would cringe at the word) imaginative – leaps and bounds. Kepler used Tycho’s scrupulously gathered data to support his own heart-felt and even occult belief that the movements of celestial bodies are regular and symmetrical, composing a true harmony of the spheres. Galileo tossed unequal weights from the Leaning Tower as a mere public demonstration of the fact (contrary to Aristotle) that they would fall at the same rate. He had long before satisfied himself that this would happen via the very un-Bacon-like method of mathematical reasoning and deductive thought-experiment. Harvey, by a similar process of quantitative analysis and deductive logic, knew that the blood must circulate, and it was only to provide proof of this fact that he set himself the secondary task of amassing empirical evidence and establishing the actual method by which it did so.

One could enumerate – in true Baconian fashion – a host of further instances. But the point is already made: advances in scientific knowledge have not been achieved for the most part via Baconian induction (which amounts to a kind of systematic and exhaustive survey of nature supposedly leading to ultimate insights) but rather by shrewd hints and guesses – in a word by hypotheses – that are then either corroborated or (in Karl Popper’s important term) falsified by subsequent research.

In summary, then, it can be said that Bacon underestimated the role of imagination and hypothesis (and overestimated the value of minute observation and bee-like data collection) in the production of new scientific knowledge. And in this respect it is true that he wrote of science like a Lord Chancellor, regally proclaiming the benefits of his own new and supposedly foolproof technique instead of recognizing and adapting procedures that had already been tested and approved. On the other hand, it must be added that Bacon did not present himself (or his method) as the final authority on the investigation of nature or, for that matter, on any other topic or issue relating to the advance of knowledge. By his own admission, he was but the Buccinator, or “trumpeter,” of such a revolutionary advance – not the founder or builder of a vast new system, but only the herald or announcing messenger of a new world to come.

3. Reputation and Cultural Legacy
If anyone deserves the title “universal genius” or “Renaissance man” (accolades traditionally reserved for those who make significant, original contributions to more than one professional discipline or area of learning), Bacon clearly merits the designation. Like Leonardo and Goethe, he produced important work in both the arts and sciences. Like Cicero, Marcus Aurelius, Benjamin Franklin, and Thomas Jefferson, he combined wide and ample intellectual and literary interests (from practical rhetoric and the study of nature to moral philosophy and educational reform) with a substantial political career. Like his near contemporary Machiavelli, he excelled in a variety of literary genres – from learned treatises to light entertainments – though, also like the great Florentine writer, he thought of himself mainly as a political statesman and practical visionary: a man whose primary goal was less to obtain literary laurels for himself than to mold the agendas and guide the policy decisions of powerful nobles and heads of state.

In our own era Bacon would be acclaimed as a “public intellectual,” though his personal record of service and authorship would certainly dwarf the achievements of most academic and political leaders today. Like nearly all public figures, he was controversial. His chaplain and first biographer William Rawley declared him “the glory of his age and nation” and portrayed him as an angel of enlightenment and social vision. His admirers in the Royal Society (an organization that traced its own inspiration and lineage to the Lord Chancellor’s writings) viewed him as nothing less than the daring originator of a new intellectual era. The poet Abraham Cowley called him a “Moses” and portrayed him as an exalted leader who virtually all by himself had set learning on a bold, firm, and entirely new path:

Bacon at last, a mighty Man, arose

Whom a wise King and Nature chose

Lord Chancellour of both their Lawes. . . .

The barren Wilderness he past,

Did on the very Border stand

Of the great promis’d Land,

And from the Mountains Top of his Exalted Wit,

Saw it himself and shew’d us it. . . .

Similarly adulatory if more prosaic assessments were offered by learned contemporaries or near contemporaries from Descartes and Gassendi to Robert Hooke and Robert Boyle. Leibniz was particularly generous and observed that, compared to Bacon’s philosophical range and lofty vision, even a great genius like Descartes “creeps on the ground.” On the other hand, Spinoza, another close contemporary, dismissed Bacon’s work (especially his inductive theories) completely and in effect denied that the supposedly grand philosophical revolution decreed by Bacon, and welcomed by his partisans, had ever occurred.

The response of the later Enlightenment was similarly divided, with a majority of thinkers lavishly praising Bacon while a dissenting minority castigated or even ridiculed him. The French encyclopedists Jean d’Alembert and Denis Diderot sounded the keynote of this 18th-century re-assessment, essentially hailing Bacon as a founding father of the modern era and emblazoning his name on the front page of the Encyclopedia. In a similar gesture, Kant dedicated his Critique of Pure Reason to Bacon and likewise saluted him as an early architect of modernity. Hegel, on the other hand, took a dimmer view. In his “Lectures on the History of Philosophy” he congratulated Bacon on his worldly sophistication and shrewdness of mind, but ultimately judged him to be a person of depraved character and a mere “coiner of mottoes.” In his view, the Lord Chancellor was a decidedly low-minded (read typically English and utilitarian) philosopher whose instruction was fit mainly for “civil servants and shopkeepers.”

Probably the fullest and most perceptive Enlightenment account of Bacon’s achievement and place in history was Voltaire’s laudatory essay in his Letters on the English. After referring to Bacon as the father of experimental philosophy, he went on to assess his literary merits, judging him to be an elegant, instructive, and witty writer, though too much given to “fustian.”

Bacon’s reputation and legacy remain controversial even today. While no historian of science or philosophy doubts his immense importance both as a proselytizer on behalf of the empirical method and as an advocate of sweeping intellectual reform, opinion varies widely as to the actual social value and moral significance of the ideas that he represented and effectively bequeathed to us. The issue basically comes down to one’s estimate of or sympathy for the entire Enlightenment/Utilitarian project. Those who for the most part share Bacon’s view that nature exists mainly for human use and benefit, and who furthermore endorse his opinion that scientific inquiry should aim first and foremost at the amelioration of the human condition and the “relief of man’s estate,” generally applaud him as a great social visionary. On the other hand, those who view nature as an entity in its own right, a higher-order estate of which the human community is only a part, tend to perceive him as a kind of arch-villain – the evil originator of the idea of science as the instrument of global imperialism and technological conquest.

On the one side, then, we have figures like the anthropologist and science writer Loren Eiseley, who portrays Bacon (whom he calls “the man who saw through time”) as a kind of Promethean culture hero. He praises Bacon as the great inventor of the idea of science as both a communal enterprise and a practical discipline in the service of humanity. On the other side, we have writers, from Theodor Adorno, Max Horkheimer, and Lewis Mumford to, more recently, Jeremy Rifkin and eco-feminist Carolyn Merchant, who have represented him as one of the main culprits behind what they perceive as western science’s continuing legacy of alienation, exploitation, and ecological oppression.

Clearly somewhere in between this ardent Baconolotry on the one hand and strident demonization of Bacon on the other lies the real Lord Chancellor: a Colossus with feet of clay. He was by no means a great system-builder (indeed his Magna Instauratio turned out to be less of a “grand edifice” than a magnificent heap) but rather, as he more modestly portrayed himself, a great spokesman for the reform of learning and a champion of modern science. In the end we can say that he was one of the giant figures of intellectual history – and as brilliant, and flawed, a philosopher as he was a statesman.

Friday, January 24, 2020

The Sophists


Ancient Greek  Thought

The sophists were itinerant professional teachers and intellectuals who frequented Athens and other Greek cities in the second half of the fifth century B.C.E. In return for a fee, the sophists offered young wealthy Greek men an education in aretē (virtue or excellence), thereby attaining wealth and fame while also arousing significant antipathy. Prior to the fifth century B.C.E., aretē was predominately associated with aristocratic warrior virtues such as courage and physical strength. In democratic Athens of the latter fifth century B.C.E., however, aretē was increasingly understood in terms of the ability to influence one’s fellow citizens in political gatherings through rhetorical persuasion; the sophistic education both grew out of and exploited this shift. The most famous representatives of the sophistic movement are Protagoras, Gorgias, Antiphon, Hippias, Prodicus and Thrasymachus.
The historical and philological difficulties confronting an interpretation of the sophists are significant. Only a handful of sophistic texts have survived and most of what we know of the sophists is drawn from second-hand testimony, fragments and the generally hostile depiction of them in Plato’s dialogues.

The philosophical problem of the nature of sophistry is arguably even more formidable. Due in large part to the influence of Plato and Aristotle, the term sophistry has come to signify the deliberate use of fallacious reasoning, intellectual charlatanism and moral unscrupulousness. It is, as the article explains, an oversimplification to think of the historical sophists in these terms because they made genuine and original contributions to Western thought. Plato and Aristotle nonetheless established their view of what constitutes legitimate philosophy in part by distinguishing their own activity – and that of Socrates – from the sophists. If one is so inclined, sophistry can thus be regarded, in a conceptual as well as historical sense, as the ‘other’ of philosophy.

Perhaps because of the interpretative difficulties mentioned above, the sophists have been many things to many people. For Hegel (1995/1840) the sophists were subjectivists whose sceptical reaction to the objective dogmatism of the presocratics was synthesised in the work of Plato and Aristotle. For the utilitarian English classicist George Grote (1904), the sophists were progressive thinkers who placed in question the prevailing morality of their time. More recent work by French theorists such as Jacques Derrida (1981) and Jean Francois-Lyotard (1985) suggests affinities between the sophists and postmodernism.


1. Introduction
The term sophist (sophistēs) derives from the Greek words for wisdom (sophia) and wise (sophos). Since Homer at least, these terms had a wide range of application, extending from practical know-how and prudence in public affairs to poetic ability and theoretical knowledge. Notably, the term sophia could be used to describe disingenuous cleverness long before the rise of the sophistic movement. Theognis, for example, writing in the sixth century B.C.E., counsels Cyrnos to accommodate his discourse to different companions, because such cleverness (sophiē) is superior to even a great excellence (Elegiac Poems, 1072, 213).
In the fifth century B.C.E. the term sophistēs was still broadly applied to ‘wise men’, including poets such as Homer and Hesiod, the Seven Sages, the Ionian ‘physicists’ and a variety of seers and prophets. The narrower use of the term to refer to professional teachers of virtue or excellence (aretē) became prevalent in the second half of the fifth century B.C.E., although this should not be taken to imply the presence of a clear distinction between philosophers, such as Socrates, and sophists, such as Protagoras, Gorgias and Prodicus. This much is evident from Aristophanes’ play The Clouds (423 B.C.E.), in which Socrates is depicted as a sophist and Prodicus praised for his wisdom.
Aristophanes’ play is a good starting point for understanding Athenian attitudes towards sophists. The Clouds depicts the tribulations of Strepsiades, an elderly Athenian citizen with significant debts. Deciding that the best way to discharge his debts is to defeat his creditors in court, he attends The Thinkery, an institute of higher education headed up by the sophist Socrates. When he fails to learn the art of speaking in The Thinkery, Strepsiades persuades his initially reluctant son, Pheidippides, to accompany him. Here they encounter two associates of Socrates, the Stronger and the Weaker Arguments, who represent lives of justice and self-discipline and injustice and self-indulgence respectively. On the basis of a popular vote, the Weaker Argument prevails and leads Pheidippides into The Thinkery for an education in how to make the weaker argument defeat the stronger. Strepsiades later revisits The Thinkery and finds that Socrates has turned his son into a pale and useless intellectual. When Pheidippides graduates, he subsequently prevails not only over Strepsiades’ creditors, but also beats his father and offers a persuasive rhetorical justification for the act. As Pheidippides prepares to beat his mother, Strepsiades’ indignation motivates him to lead a violent mob attack on The Thinkery.
Aristophanes’ depiction of Socrates the sophist is revealing on at least three levels. In the first instance, it demonstrates that the distinction between Socrates and his sophistic counterparts was far from clear to their contemporaries. Although Socrates did not charge fees and frequently asserted that all he knew was that he was ignorant of most matters, his association with the sophists reflects both the indeterminacy of the term sophist and the difficulty, at least for the everyday Athenian citizen, of distinguishing his methods from theirs. Secondly, Aristophanes’ depiction suggests that the sophistic education reflected a decline from the heroic Athens of earlier generations. Thirdly, the attribution to the sophists of intellectual deviousness and moral dubiousness predates Plato and Aristotle.
Hostility towards sophists was a significant factor in the decision of the Athenian dēmos to condemn Socrates to the death penalty for impiety. Anytus, who was one of Socrates’ accusers at his trial, was clearly unconcerned with details such as that the man he accused did not claim to teach aretē or extract fees for so doing. He is depicted by Plato as suggesting that sophists are the ruin of all those who come into contact with them and as advocating their expulsion from the city (Meno, 91c-92c). Equally as revealing, in terms of attitudes towards the sophists, is Socrates’ discussion with Hippocrates, a wealthy young Athenian keen to become a pupil of Protagoras (Protagoras, 312a). Hippocrates is so eager to meet Protagoras that he wakes Socrates in the early hours of the morning, yet later concedes that he himself would be ashamed to be known as a sophist by his fellow citizens.
Plato depicts Protagoras as well aware of the hostility and resentment engendered by his profession (Protagoras, 316c-e). It is not surprising, Protagoras suggests, that foreigners who profess to be wise and persuade the wealthy youth of powerful cities to forsake their family and friends and consort with them would arouse suspicion. Indeed, Protagoras claims that the sophistic art is an ancient one, but that sophists of old, including poets such as Homer, Hesiod and Simonides, prophets, seers and even physical trainers, deliberately did not adopt the name for fear of persecution. Protagoras says that while he has adopted a strategy of openly professing to be a sophist, he has taken other precautions – perhaps including his association with the Athenian general Pericles – in order to secure his safety.
The low standing of the sophists in Athenian public opinion does not stem from a single source. No doubt suspicion of intellectuals among the many was a factor. New money and democratic decision-making, however, also constituted a threat to the conservative Athenian aristocratic establishment. This threatening social change is reflected in the attitudes towards the concept of excellence or virtue (aretē) alluded to in the summary above. Whereas in the Homeric epics aretē generally denotes the strength and courage of a real man, in the second half of the fifth century B.C.E. it increasingly became associated with success in public affairs through rhetorical persuasion.
In the context of Athenian political life of the late fifth century B.C.E. the importance of skill in persuasive speech, or rhetoric, cannot be underestimated. The development of democracy made mastery of the spoken word not only a precondition of political success but also indispensable as a form of self-defence in the event that one was subject to a lawsuit. The sophists accordingly answered a growing need among the young and ambitious. Meno, an ambitious pupil of Gorgias, says that the aretē – and hence function – of a man is to rule over people, that is, manage his public affairs so as to benefit his friends and harm his enemies (73c-d). This is a long-standing ideal, but one best realised in democratic Athens through rhetoric. Rhetoric was thus the core of the sophistic education (Protagoras, 318e), even if most sophists professed to teach a broader range of subjects.
Suspicion towards the sophists was also informed by their departure from the aristocratic model of education (paideia). Since Homeric Greece, paideia had been the preoccupation of the ruling nobles and was based around a set of moral precepts befitting an aristocratic warrior class. The business model of the sophists presupposed that aretē could be taught to all free citizens, a claim that Protagoras implicitly defends in his great speech regarding the origins of justice. The sophists were thus a threat to the status quo because they made an indiscriminate promise – assuming capacity to pay fees – to provide the young and ambitious with the power to prevail in public life.
One could therefore loosely define sophists as paid teachers of aretē, where the latter is understood in terms of the capacity to attain and exercise political power through persuasive speech. This is only a starting point, however, and the broad and significant intellectual achievement of the sophists, which we will consider in the following two sections, has led some to ask whether it is possible or desirable to attribute them with a unique method or outlook that would serve as a unifying characteristic while also differentiating them from philosophers.
Scholarship in the nineteenth century and beyond has often fastened on method as a way of differentiating Socrates from the sophists. For Henry Sidgwick (1872, 288-307), for example, whereas Socrates employed a question-and-answer method in search of the truth, the sophists gave long epideictic or display speeches for the purposes of persuasion. It seems difficult to maintain a clear methodical differentiation on this basis, given that Gorgias and Protagoras both claimed proficiency in short speeches and that Socrates engages in long eloquent speeches – many in mythical form – throughout the Platonic dialogues. It is moreover simply misleading to say that the sophists were in all cases unconcerned with truth, as to assert the relativity of truth is itself to make a truth claim. A further consideration is that Socrates is guilty of fallacious reasoning in many of the Platonic dialogues, although this point is less relevant if we assume that Socrates’ logical errors are unintentional.
G.B. Kerferd (1981a) has proposed a more nuanced set of methodological criteria to differentiate Socrates from the sophists. According to Kerferd, the sophists employed eristic and antilogical methods of argument, whereas Socrates disdained the former and saw the latter as a necessary but incomplete step on the way towards dialectic. Plato uses the term eristic to denote the practice – it is not strictly speaking a method – of seeking victory in argument without regard for the truth. We find a representation of eristic techniques in Plato’s dialogue Euthydemus, where the brothers Euthydemus and Dionysiodorous deliberately use egregiously fallacious arguments for the purpose of contradicting and prevailing over their opponent. Antilogic is the method of proceeding from a given argument, usually that offered by an opponent, towards the establishment of a contrary or contradictory argument in such a way that the opponent must either abandon his first position or accept both positions. This method of argumentation was employed by most of the sophists, and examples are found in the works of Protagoras and Antiphon.
Kerferd’s claim that we can distinguish between philosophy and sophistry by appealing to dialectic remains problematic, however. In what are usually taken to be the “early” Platonic dialogues, we find Socrates’ employing a dialectical method of refutation referred to as the elenchus. As Nehamas has argued (1990), while the elenchus is distinguishable from eristic because of its concern with the truth, it is harder to differentiate from antilogic because its success is always dependent upon the capacity of interlocutors to defend themselves against refutation in a particular case. In Plato’s “middle” and “later” dialogues, on the other hand, according to Nehamas’ interpretation, Plato associates dialectic with knowledge of the forms, but this seemingly involves an epistemological and metaphysical commitment to a transcendent ontology that most philosophers, then and now, would be reluctant to uphold.
More recent attempts to explain what differentiates philosophy from sophistry have accordingly tended to focus on a difference in moral purpose or in terms of choices for different ways way of life, as Aristotle elegantly puts it (Metaphysics IV, 2, 1004b24-5). Section 4 will return to the question of whether this is the best way to think about the distinction between philosophy and sophistry. Before this, however, it is useful to sketch the biographies and interests of the most prominent sophists and also consider some common themes in their thought.

2. The Sophists
a. Protagoras

Protagoras of Abdera (c. 490-420 B.C.E.) was the most prominent member of the sophistic movement and Plato reports he was the first to charge fees using that title (Protagoras, 349a). Despite his animus towards the sophists, Plato depicts Protagoras as quite a sympathetic and dignified figure.

One of the more intriguing aspects of Protagoras’ life and work is his association with the great Athenian general and statesman Pericles (c. 495-429 B.C.E.). Pericles, who was the most influential statesman in Athens for more than 30 years, including the first two years of the Peloponnesian War, seems to have held a high regard for philosophers and sophists, and Protagoras in particular, entrusting him with the role of drafting laws for the Athenian foundation city of Thurii in 444 B.C.E.

From a philosophical perspective, Protagoras is most famous for his relativistic account of truth – in particular the claim that ‘man is the measure of all things’ – and his agnosticism concerning the Gods. The first topic will be discussed in section 3b. Protagoras’ agnosticism is famously articulated in the claim that ‘concerning the gods I am not in a position to know either that (or how) they are or that (or how) they are not, or what they are like in appearance; for there are many things that prevent knowledge, the obscurity of the matter and the brevity of human life’ (DK, 80B4). This seems to express a form of religious agnosticism not completely foreign to educated Athenian opinion. Despite this, according to tradition, Protagoras was convicted of impiety towards the end of his life. As a consequence, so the story goes, his books were burnt and he drowned at sea while departing Athens. It is perhaps significant in this context that Protagoras seems to have been the source of the sophistic claim to ‘make the weaker argument defeat the stronger’ parodied by Aristophanes.

Plato suggests that Protagoras sought to differ his educational offering from that of other sophists, such as Hippias, by concentrating upon instruction in aretē in the sense of political virtue rather than specialised studies such as astronomy and mathematics (Protagoras, 318e).

Apart from his works Truth and On the Gods, which deal with his relativistic account of truth and agnosticism respectively, Diogenes Laertius says that Protagoras wrote the following books: Antilogies, Art of Eristics, Imperative, On Ambition, On Incorrect Human Actions, On those in Hades, On Sciences, On Virtues, On Wrestling, On the Original State of Things and Trial over a Fee.

b. Gorgias
Gorgias of Leontini (c.485 - c.390 B.C.E.) is generally considered as a member of the sophistic movement, despite his disavowal of the capacity to teach aretē (Meno, 96c). The major focus of Gorgias was rhetoric and given the importance of persuasive speaking to the sophistic education, and his acceptance of fees, it is appropriate to consider him alongside other famous sophists for present purposes.
Gorgias visited Athens in 427 B.C.E. as the leader of an embassy from Leontini with the successful intention of persuading the Athenians to make an alliance against Syracuse. He travelled extensively around Greece, earning large sums of money by giving lessons in rhetoric and epideictic speeches.

Plato’s Gorgias depicts the rhetorician as something of a celebrity, who either does not have well thought out views on the implications of his expertise, or is reluctant to share them, and who denies his responsibility for the unjust use of rhetorical skill by errant students. Although Gorgias presents himself as moderately upstanding, the dramatic structure of Plato’s dialogue suggests that the defence of injustice by Polus and the appeal to the natural right of the stronger by Callicles are partly grounded in the conceptual presuppositions of Gorgianic rhetoric.
Gorgias’ original contribution to philosophy is sometimes disputed, but the fragments of his works On Not Being or Nature and Helen – discussed in detail in section 3c – feature intriguing claims concerning the power of rhetorical speech and a style of argumentation reminiscent of Parmenides and Zeno. Gorgias is also credited with other orations and encomia and a technical treatise on rhetoric titled At the Right Moment in Time.

c. Antiphon
The biographical details surrounding Antiphon the sophist (c. 470-411 B.C.) are unclear – one unresolved issue is whether he should be identified with Antiphon of Rhamnus (a statesman and teacher of rhetoric who was a member of the oligarchy which held power in Athens briefly in 411 B.C.E.). However, since the publication of fragments from his On Truth in the early twentieth century he has been regarded as a major representative of the sophistic movement.

On Truth, which features a range of positions and counterpositions on the relationship between nature and convention (see section 3a below), is sometimes considered an important text in the history of political thought because of its alleged advocacy of egalitarianism:

Those born of illustrious fathers we respect and honour, whereas those who come from an undistinguished house we neither respect nor honour. In this we behave like barbarians towards one another. For by nature we all equally, both barbarians and Greeks, have an entirely similar origin: for it is fitting to fulfil the natural satisfactions which are necessary to all men: all have the ability to fulfil these in the same way, and in all this none of us is different either as barbarian or as Greek; for we all breathe into the air with mouth and nostrils and we all eat with the hands (quoted in Untersteiner, 1954).
Whether this statement should be taken as expressing the actual views of Antiphon, or rather as part of an antilogical presentation of opposing views on justice remains an open question, as does whether such a position rules out the identification of Antiphon the sophist with the oligarchical Antiphon of Rhamnus.

d. Hippias

The exact dates for Hippias of Elis are unknown, but scholars generally assume that he lived during the same period as Protagoras. Whereas Plato’s depictions of Protagoras – and to a lesser extent Gorgias – indicate a modicum of respect, he presents Hippias as a comic figure who is obsessed with money, pompous and confused.

Hippias is best known for his polymathy (DK 86A14). His areas of expertise seem to have included astronomy, grammar, history, mathematics, music, poetry, prose, rhetoric, painting and sculpture. Like Gorgias and Prodicus, he served as an ambassador for his home city. His work as a historian, which included compiling lists of Olympic victors, was invaluable to Thucydides and subsequent historians as it allowed for a more precise dating of past events. In mathematics he is attributed with the discovery of a curve – the quadratrix – used to trisect an angle.

In terms of his philosophical contribution, Kerferd has suggested, on the basis of Plato’s Hippias Major (301d-302b), that Hippias advocated a theory that classes or kinds of thing are dependent on a being that traverses them. It is hard to make much sense of this alleged doctrine on the basis of available evidence. As suggested above, Plato depicts Hippias as philosophically shallow and unable to keep up with Socrates in dialectical discussion.

e. Prodicus
Prodicus of Ceos, who lived during roughly the same period as Protagoras and Hippias, is best known for his subtle distinctions between the meanings of words. He is thought to have written a treatise titled On the Correctness of Names.

Plato gives an amusing account of Prodicus’ method in the following passage of the Protagoras:

Prodicus spoke up next: … ‘those who attend discussions such as this ought to listen impartially, but not equally, to both interlocutors. There is a distinction here. We ought to listen impartially but not divide our attention equally: More should go to the wiser speaker and less to the more unlearned … In this way our meeting would take a most attractive turn, for you, the speakers, would then most surely earn the respect, rather than the praise, of those listening to you. For respect is guilelessly inherent in the souls of listeners, but praise is all too often merely a deceitful verbal expression. And then, too, we, your audience, would be most cheered, but not pleased, for to be cheered is to learn something, to participate in some intellectual activity; but to be pleased has to do with eating or experiencing some other pleasure in the body’ (337a-c).

Prodicus’ epideictic speech, The Choice of Heracles, was singled out for praise by Xenophon (Memorabilia, II.1.21-34) and in addition to his private teaching he seems to have served as an ambassador for Ceos (the birthplace of Simonides) on several occasions.
Socrates, although perhaps with some degree of irony, was fond of calling himself a pupil of Prodicus (Protagoras, 341a; Meno, 96d).

f. Thrasymachus
Thrasymachus was a well-known rhetorician in Athens in the latter part of the fifth century B.C.E., but our only surviving record of his views is contained in Plato’s Cleitophon and Book One of The Republic. He is depicted as brash and aggressive, with views on the nature of justice that will be examined in section 3a.

3. Major Themes of Sophistic Thought

a. Nature and Convention
The distinction between physis (nature) and nomos (custom, law, convention) was a central theme in Greek thought in the second half of the fifth century B.C.E. and is especially important for understanding the work of the sophists. Before turning to sophistic considerations of these concepts and the distinction between them, it is worth sketching the meaning of the Greek terms.

Aristotle defines physis as ‘the substance of things which have in themselves as such a source of movement’ (Metaphysics, 1015a13-15). The term physis is closely connected with the Greek verb to grow (phuō) and the dynamic aspect of physis reflects the view that the nature of things is found in their origins and internal principles of change. Some of the Ionian thinkers now referred to as presocratics, including Thales and Heraclitus, used the term physis for reality as a whole, or at least its underlying material constituents, referring to the investigation of nature in this context as historia (inquiry) rather than philosophy.
The term nomos refers to a wide range of normative concepts extending from customs and conventions to positive law. It would be misleading to regard the term as referring only to arbitrary human conventions, as Heraclitus’ appeal to the distinction between human nomoi and the one divine nomos (DK 22B2 and 114) makes clear. Nonetheless, increased travel, as exemplified by the histories of Herodotus, led to a greater understanding of the wide array of customs, conventions and laws among communities in the ancient world. This recognition sets up the possibility of a dichotomy between what is unchanging and according to nature and what is merely a product of arbitrary human convention.
The dichotomy between physis and nomos seems to have been something of a commonplace of sophistic thought and was appealed to by Protagoras and Hippias among others. Perhaps the most instructive sophistic account of the distinction, however, is found in Antiphon’s fragment On Truth.

Antiphon applies the distinction to notions of justice and injustice, arguing that the majority of things which are considered just according to nomos are in direct conflict with nature and hence not truly or naturally just (DK 87 A44). The basic thrust of Antiphon’s argument is that laws and conventions are designed as a constraint upon our natural pursuit of pleasure. In a passage suggestive of the discussion on justice early in Plato’s Republic, Antiphon also asserts that one should employ justice to one’s advantage by regarding the laws as important when witnesses are present, but disregarding them when one can get away with it. Although these arguments may be construed as part of an antilogical exercise on nature and convention rather than prescriptions for a life of prudent immorality, they are consistent with views on the relation between human nature and justice suggested by Plato’s depiction of Callicles and Thrasymachus in the Gorgias and Republic respectively.
Callicles, a young Athenian aristocrat who may be a real historical figure or a creation of Plato’s imagination, was not a sophist; indeed he expresses disdain for them (Gorgias, 520a). His account of the relation between physis and nomos nonetheless owes a debt to sophistic thought. According to Callicles, Socrates’ arguments in favour of the claim that it is better to suffer injustice than to commit injustice trade on a deliberate ambiguity in the term justice. Callicles argues that conventional justice is a kind of slave morality imposed by the many to constrain the desires of the superior few. What is just according to nature, by contrast, is seen by observing animals in nature and relations between political communities where it can be seen that the strong prevail over the weak. Callicles himself takes this argument in the direction of a vulgar sensual hedonism motivated by the desire to have more than others (pleonexia), but sensual hedonism as such does not seem to be a necessary consequence of his account of natural justice.

}Although the sophist Thrasymachus does not employ the physis/nomos distinction in Book One of the Republic, his account of justice (338d-354c) belongs within a similar conceptual framework. Like Callicles, Thrasymachus accuses Socrates of deliberate deception in his arguments, particularly in the claim the art of justice consists in a ruler looking after their subjects. According to Thrasymachus, we do better to think of the ruler/ruled relation in terms of a shepherd looking after his flock with a view to its eventual demise. Justice in conventional terms is simply a naive concern for the advantage of another. From another more natural perspective, justice is the rule of the stronger, insofar as rulers establish laws which persuade the multitude that it is just for them to obey what is to the advantage of the ruling few

An alternative, and more edifying, account of the relation between physis and nomos is found in Protagoras’ great speech (Protagoras, 320c-328d). According to Protagoras’ myth, man was originally set forth by the gods into a violent state of nature reminiscent of that later described by Hobbes. Our condition improved when Zeus bestowed us with shame and justice; these enabled us to develop the skill of politics and hence civilized communal relations and virtue. Apart from supporting his argument that aretē can be taught, this account suggests a defence of nomos on the grounds that nature by itself is insufficient for the flourishing of man considered as a political animal.

b. Relativism

The primary source on sophistic relativism about knowledge and/or truth is Protagoras’ famous ‘man is the measure’ statement. Interpretation of Protagoras’ thesis has always been a matter of controversy. Caution is needed in particular against the temptation to read modern epistemological concerns into Protagoras’ account and sophistic teaching on the relativity of truth more generally.

Protagoras measure thesis is as follows:
A human being is the measure of all things, of those things that are, that they are, and of those things that are not, that they are not (DK, 80B1).

There is near scholarly consensus that Protagoras is referring here to each human being as the measure of what is rather than ‘humankind’ as such, although the Greek term for ‘human’ –hōanthrōpos– certainly does not rule out the second interpretation. Plato’s Theaetetus (152a), however, suggests the first reading and I will assume its correctness here. On this reading we can regard Protagoras as asserting that if the wind, for example, feels (or seems) cold to me and feels (or seems) warm to you, then the wind is cold for me and is warm for you.

Another interpretative issue concerns whether we should construe Protagoras’ statement as primarily ontological or epistemological in intent. Scholarship by Kahn, Owen and Kerferd among others suggests that, while the Greeks lacked a clear distinction between existential and predicative uses of ‘to be’, they tended to treat existential uses as short for predicative uses.

Having sketched some of the interpretative difficulties surrounding Protagoras’ statement, we are still left with at least three possible readings (Kerferd, 1981a, 86). Protagoras could be asserting that (i) there is no mind-independent wind at all, but merely private subjective winds (ii) there is a wind that exists independently of my perception of it, but it is in itself neither cold nor warm as these qualities are private (iii) there is a wind that exists independently of my perception of it and this is both cold and warm insofar as two qualities can inhere in the same mind-independent ‘entity’.

All three interpretations are live options, with (i) perhaps the least plausible. Whatever the exact import of Protagoras’ relativism, however, the following passage from the Theaetetus suggests that it was also extended to the political and ethical realm:
Whatever in any particular city is considered just and admirable is just and admirable in that city, for so long as the convention remains in place (167c).

One difficulty this passage raises is that while Protagoras asserted that all beliefs are equally true, he also maintained that some are superior to others because they are more subjectively fulfilling for those who hold them. Protagoras thus seems to want it both ways, insofar as he removes an objective criterion of truth while also asserting that some subjective states are better than others. His appeal to better and worse beliefs could, however, be taken to refer to the persuasiveness and pleasure induced by certain beliefs and speeches rather than their objective truth.
The other major source for sophistic relativism is the Dissoi Logoi, an undated and anonymous example of Protagorean antilogic. In the Dissoi Logoi we find competing arguments on five theses, including whether the good and the bad are the same or different, and a series of examples of the relativity of different cultural practices and laws. Overall the Dissoi Logoi can be taken to uphold not only the relativity of truth but also what Barney (2006, 89) has called the variability thesis: whatever is good in some qualified way is also bad in another respect and the same is the case for a wide range of contrary predicates.

c. Language and Reality

Understandably given their educational program, the sophists placed great emphasis upon the power of speech (logos). Logos is a notoriously difficult term to translate and can refer to thought and that about which we speak and think as well as rational speech or language. The sophists were interested in particular with the role of human discourse in the shaping of reality. Rhetoric was the centrepiece of the curriculum, but literary interpretation of the work of poets was also a staple of sophistic education. Some philosophical implications of the sophistic concern with speech are considered in section 4, but in the current section it is instructive to concentrate on Gorgias’ account of the power of rhetorical logos.

The extant fragments attributed to the historical Gorgias indicate not only scepticism towards essential being and our epistemic access to this putative realm, but an assertion of the omnipotence of persuasive logos to make the natural and practical world conform to human desires. Reporting upon Gorgias’ speech About the Nonexistent or on Nature, Sextus says that the rhetorician, while adopting a different approach from that of Protagoras, also eliminated the criterion (DK, 82B3). The elimination of the criterion refers to the rejection of a standard that would enable us to distinguish clearly between knowledge and opinion about being and nature. Whereas Protagoras asserted that man is the measure of all things, Gorgias concentrated upon the status of truth about being and nature as a discursive construction.

About the Nonexistent or on Nature transgresses the injunction of Parmenides that one cannot say of what is that it is not. Employing a series of conditional arguments in the manner of Zeno, Gorgias asserts that nothing exists, that if it did exist it could not be apprehended, and if it was apprehended it could not be articulated in logos. The elaborate parody displays the paradoxical character of attempts to disclose the true nature of beings through logos:

For that by which we reveal is logos, but logos is not substances and existing things. Therefore we do not reveal existing things to our comrades, but logos, which is something other than substances (DK, 82B3)

Even if knowledge of beings was possible, its transmission in logos would always be distorted by the rift between substances and our apprehension and communication of them. Gorgias also suggests, even more provocatively, that insofar as speech is the medium by which humans articulate their experience of the world, logos is not evocative of the external, but rather the external is what reveals logos. An understanding of logos about nature as constitutive rather than descriptive here supports the assertion of the omnipotence of rhetorical expertise. Gorgias’ account suggests there is no knowledge of nature sub specie aeternitatis and our grasp of reality is always mediated by discursive interpretations, which, in turn, implies that truth cannot be separated from human interests and power claims.
In the Encomium to Helen Gorgias refers to logos as a powerful master (DK, 82B11). If humans had knowledge of the past, present or future they would not be compelled to adopt unpredictable opinion as their counsellor. The endless contention of astronomers, politicians and philosophers is taken to demonstrate that no logos is definitive. Human ignorance about non-existent truth can thus be exploited by rhetorical persuasion insofar as humans desire the illusion of certainty imparted by the spoken word:

The effect of logos upon the condition of the soul is comparable to the power of drugs over the nature of bodies. For just as different drugs dispel different secretions from the body, and some bring an end to disease and others to life, so also in the case of logoi, some distress, others delight, some cause fear, others make hearers bold, and some drug and bewitch the soul with a kind of evil persuasion (DK, 82B11).
All who have persuaded people, Gorgias says, do so by moulding a false logos. While other forms of power require force, logos makes all its willing slave.

This account of the relation between persuasive speech, knowledge, opinion and reality is broadly consistent with Plato’s depiction of the rhetorician in the Gorgias. Both Protagoras’ relativism and Gorgias’ account of the omnipotence of logos are suggestive of what we moderns might call a deflationary epistemic anti-realism.

4. The Distinction Between Philosophy and Sophistry

The distinction between philosophy and sophistry is in itself a difficult philosophical problem. This closing section examines the attempt of Plato to establish a clear line of demarcation between philosophy and sophistry.

As alluded to above, the terms ‘philosopher’ and ‘sophist’ were disputed in the fifth and fourth century B.C.E., the subject of contention between rival schools of thought. Histories of philosophy tend to begin with the Ionian ‘physicist’ Thales, but the presocratics referred to the activity they were engaged in as historia (inquiry) rather than philosophia and although it may have some validity as a historical projection, the notion that philosophy begins with Thales derives from the mid nineteenth century. It was Plato who first clearly and consistently refers to the activity of philosophia and much of what he has to say is best understood in terms of an explicit or implicit contrast with the rival schools of the sophists and Isocrates (who also claimed the title philosophia for his rhetorical educational program).
The related questions as to what a sophist is and how we can distinguish the philosopher from the sophist were taken very seriously by Plato. He also acknowledges the difficulty inherent in the pursuit of these questions and it is perhaps revealing that the dialogue dedicated to the task, Sophist, culminates in a discussion about the being of non-being. Socrates converses with sophists in Euthydemus, Hippias Major, Hippias Minor, Gorgias, Protagoras and the Republic and discusses sophists at length in the Apology, Sophist, Statesman and Theaetetus. It can thus be argued that the search for the sophist and distinction between philosophy and sophistry are not only central themes in the Platonic dialogues, but constitutive of the very idea and practice of philosophy, at least in its original sense as articulated by Plato.
This point has been recognised by recent poststructuralist thinkers such as Jacques Derrida and Jean Francois-Lyotard in the context of their project to place in question central presuppositions of the Western philosophical tradition deriving from Plato. Derrida attacks the interminable trial prosecuted by Plato against the sophists with a view to exhuming ‘the conceptual monuments marking out the battle lines between philosophy and sophistry’ (1981, 106). Lyotard views the sophists as in possession of unique insight into the sense in which discourses about what is just cannot transcend the realm of opinion and pragmatic language games (1985, 73-83).

The prospects for establishing a clear methodological divide between philosophy and sophistry are poor. Apart from the considerations mentioned in section 1, it would be misleading to say that the sophists were unconcerned with truth or genuine theoretical investigation and Socrates is clearly guilty of fallacious reasoning in many of the Platonic dialogues. In the Sophist, in fact, Plato implies that the Socratic technique of dialectical refutation represents a kind of ‘noble sophistry’ (Sophist, 231b).
This in large part explains why contemporary scholarship on the distinction between philosophy and sophistry has tended to focus on a difference in moral character. Nehamas, for example, has argued that ‘Socrates did not differ from the sophists in method but in overall purpose’ (1990, 13).  Nehamas relates this overall purpose to the Socratic elenchus, suggesting that Socrates’ disavowal of knowledge and of the capacity to teach aretē distances him from the sophists. However, this way of demarcating Socrates’ practice from that of his sophistic counterparts, Nehamas argues, cannot justify the later Platonic distinction between philosophy and sophistry, insofar as Plato forfeited the right to uphold the distinction once he developed a substantive philosophical teaching, that is, the theory of forms.

There is no doubt much truth in the claim that Plato and Aristotle depict the philosopher as pursuing a different way of life than the sophist, but to say that Plato defines the philosopher either through a difference in moral purpose, as in the case of Socrates, or a metaphysical presumption regarding the existence of transcendent forms, as in his later work, does not in itself adequately characterise Plato’s critique of his sophistic contemporaries. Once we attend to Plato’s own treatment of the distinction between philosophy and sophistry two themes quickly become clear: the mercenary character of the sophists and their overestimation of the power of speech. For Plato, at least, these two aspects of the sophistic education tell us something about the persona of the sophist as the embodiment of a distinctive attitude towards knowledge.

The fact that the sophists taught for profit may not seem objectionable to modern readers; most present-day university professors would be reluctant to teach pro bono. It is clearly a major issue for Plato, however. Plato can barely mention the sophists without contemptuous reference to the mercenary aspect of their trade: particularly revealing examples of Plato’s disdain for sophistic money-making and avarice are found at Apology 19d, Euthydemus 304b-c, Hippias Major 282b-e, Protagoras 312c-d and Sophist 222d-224d, and this is not an exhaustive list. Part of the issue here is no doubt Plato’s commitment to a way of life dedicated to knowledge and contemplation. It is significant that students in the Academy, arguably the first higher education institution, were not required to pay fees. This is only part of the story, however.

A good starting point is to consider the etymology of the term philosophia as suggested by the Phaedrus and Symposium. After completing his palinode in the Phaedrus, Socrates expresses the hope that he never be deprived of his ‘erotic’ art. Whereas the speechwriter Lysias presents erōs (desire, love) as an unseemly waste of expenditure (Phaedrus, 257a), in his later speech Socrates demonstrates how erōs impels the soul to rise towards the forms. The followers of Zeus, or philosophy, Socrates suggests, educate the object of their erōs to imitate and partake in the ways of the God. Similarly, in the Symposium, Socrates refers to an exception to his ignorance. Approving of the suggestion by Phaedrus that the drinking party eulogise erōs, Socrates states that ta erōtika (the erotic things) are the only subject concerning which he would claim to possess rigorous knowledge (Symposium, 177 d-e). When it is his turn to deliver a speech, Socrates laments his incapacity to compete with the Gorgias-influenced rhetoric of Agathon before delivering Diotima’s lessons on erōs, represented as a daimonion or semi-divine intermediary between the mortal and the divine. Erōs is thus presented as analogous to philosophy in its etymological sense, a striving after wisdom or completion that can only be temporarily fulfilled in this life by contemplation of the forms of the beautiful and the good (204a-b). The philosopher is someone who strives after wisdom – a friend or lover of wisdom – not someone who possesses wisdom as a finished product, as the sophists claimed to do and as their name suggests.

Plato’s emphasis upon philosophy as an ‘erotic’ activity of striving for wisdom, rather than as a finished state of completed wisdom, largely explains his distaste for sophistic money-making. The sophists, according to Plato, considered knowledge to be a ready-made product that could be sold without discrimination to all comers. The Theages, a Socratic dialogue whose authorship some scholars have disputed, but which expresses sentiments consistent with other Platonic dialogues, makes this point with particular clarity. The farmer Demodokos has brought his son, Theages, who is desirous of wisdom, to Socrates. As Socrates questions his potential pupil regarding what sort of wisdom he seeks, it becomes evident that Theages seeks power in the city and influence over other men. Since Theages is looking for political wisdom, Socrates refers him to the statesmen and the sophists. Disavowing his ability to compete with the expertise of Gorgias and Prodicus in this respect, Socrates nonetheless admits his knowledge of the erotic things, a subject about which he claims to know more than any man who has come before or indeed any of those to come (Theages, 128b). In response to the suggestion that he study with a sophist, Theages reveals his intention to become a pupil of Socrates. Perhaps reluctant to take on an unpromising pupil, Socrates insists that he must follow the commands of his daimonion, which will determine whether those associating with him are capable of making any progress (Theages, 129c). The dialogue ends with an agreement that all parties make trial of the daimonion to see whether it permits of the association.

One need only follow the suggestion of the Symposium that erōs is a daimonion to see that Socratic education, as presented by Plato, is concomitant with a kind of ‘erotic’ concern with the beautiful and the good, considered as natural in contrast to the purely conventional. Whereas the sophists accept pupils indiscriminately, provided they have the money to pay, Socrates is oriented by his desire to cultivate the beautiful and the good in promising natures. In short, the difference between Socrates and his sophistic contemporaries, as Xenophon suggests, is the difference between a lover and a prostitute. The sophists, for Xenophon’s Socrates, are prostitutes of wisdom because they sell their wares to anyone with the capacity to pay (Memorabilia, I.6.13). This – somewhat paradoxically – accounts for Socrates’ shamelessness in comparison with his sophistic contemporaries, his preparedness to follow the argument wherever it leads. By contrast, Protagoras and Gorgias are shown, in the dialogues that bear their names, as vulnerable to the conventional opinions of the paying fathers of their pupils, a weakness contributing to their refutation. The sophists are thus characterised by Plato as subordinating the pursuit of truth to worldly success, in a way that perhaps calls to mind the activities of contemporary advertising executives or management consultants.

The overestimation of the power of human speech is the other theme that emerges clearly from Plato’s (and Aristotle’s) critique of the sophists. In the Sophist, Plato says that dialectic – division and collection according to kinds – is the knowledge possessed by the free man or philosopher (Sophist, 253c). Here Plato reintroduces the difference between true and false rhetoric, alluded to in the Phaedrus, according to which the former presupposes the capacity to see the one in the many (Phaedrus, 266b). Plato’s claim is that the capacity to divide and synthesise in accordance with one form is required for the true expertise of logos. Whatever else one makes of Plato’s account of our knowledge of the forms, it clearly involves the apprehension of a higher level of being than sensory perception and speech. The philosopher, then, considers rational speech as oriented by a genuine understanding of being or nature. The sophist, by contrast, is said by Plato to occupy the realm of falsity, exploiting the difficulty of dialectic by producing discursive semblances, or phantasms, of true being (Sophist, 234c). The sophist uses the power of persuasive speech to construct or create images of the world and is thus a kind of ‘enchanter’ and imitator.

This aspect of Plato’s critique of sophistry seems particularly apposite in regard to Gorgias’ rhetoric, both as found in the Platonic dialogue and the extant fragments attributed to the historical Gorgias. In response to Socratic questioning, Gorgias asserts that rhetoric is an all-comprehending power that holds under itself all of the other activities and occupations (Gorgias, 456a). He later claims that it is concerned with the greatest good for man, namely those speeches that allow one to attain freedom and rule over others, especially, but not exclusively, in political settings (452d). As suggested above, in the context of Athenian public life the capacity to persuade was a precondition of political success. For present purposes, however, the key point is that freedom and rule over others are both forms of power: respectively power in the sense of liberty or capacity to do something, which suggests the absence of relevant constraints, and power in the sense of dominion over others. Gorgias is suggesting that rhetoric, as the expertise of persuasive speech, is the source of power in a quite comprehensive sense and that power is ‘the good’. What we have here is an assertion of the omnipotence of speech, at the very least in relation to the determination of human affairs.

The Socratic position, as becomes clear later in the discussion with Polus (466d-e), and is also suggested in Meno (88c-d) and Euthydemus (281d-e), is that power without knowledge of the good is not genuinely good. Without such knowledge not only ‘external’ goods, such as wealth and health, not only the areas of expertise that enable one to attain such so-called goods, but the very capacity to attain them is either of no value or harmful. This in large part explains the so-called Socratic paradox that virtue is knowledge.

Plato’s critique of the sophists’ overestimation of the power of speech should not be conflated with his commitment to the theory of the forms. For Plato, the sophist reduces thinking to a kind of making: by asserting the omnipotence of human speech the sophist pays insufficient regard to the natural limits upon human knowledge and our status as seekers rather than possessors of knowledge (Sophist, 233d). This critique of the sophists does perhaps require a minimal commitment to a distinction between appearance and reality, but it is an oversimplification to suggest that Plato’s distinction between philosophy and sophistry rests upon a substantive metaphysical theory, in large part because our knowledge of the forms for Plato is itself inherently ethical. Plato, like his Socrates, differentiates the philosopher from the sophist primarily through the virtues of the philosopher’s soul (McKoy, 2008). Socrates is an embodiment of the moral virtues, but love of the forms also has consequences for the philosopher’s character.

There is a further ethical and political aspect to the Platonic and Aristotelian critique of the sophists’ overestimation of the power of speech. In Book Ten of Nicomachean Ethics, Aristotle suggests that the sophists tended to reduce politics to rhetoric (1181a12-15) and overemphasised the role that could be played by rational persuasion in the political realm. Part of Aristotle’s point is that there is an element to living well that transcends speech. As Hadot eloquently puts it, citing Greek and Roman sources, ‘traditionally people who developed an apparently philosophical discourse without trying to live their lives in accordance with their discourse, and without their discourse emanating from their life experience, were called sophists’ (2004, 174).

The testimony of Xenophon, a Greek general and man of action, is instructive here. In his treatise on hunting, (Cynēgeticus, 13.1-9), Xenophon commends Socratic over sophistic education in aretē, not only on the grounds that the sophists hunt the young and rich and are deceptive, but also because they are men of words rather than action. The importance of consistency between one’s words and actions if one is to be truly virtuous is a commonplace of Greek thought, and this is one important respect in which the sophists, at least from the Platonic-Aristotelian perspective, fell short.

One might think that a denial of Plato’s demarcation between philosophy and sophistry remains well-motivated simply because the historical sophists made genuine contributions to philosophy. But this does not entail the illegitimacy of Plato’s distinction. Once we recognise that Plato is pointing primarily to a fundamental ethical orientation relating to the respective personas of the philosopher and sophist, rather than a methodological or purely theoretical distinction, the tension dissolves. This is not to deny that the ethical orientation of the sophist is likely to lead to a certain kind of philosophising, namely one which attempts to master nature, human and external, rather than understand it as it is.
Sophistry for Socrates, Plato and Aristotle represents a choice for a certain way of life, embodied in a particular attitude towards knowledge which views it as a finished product to be transmitted to all comers. Plato’s distinction between philosophy and sophistry is not simply an arbitrary viewpoint in a dispute over naming rights, but is rather based upon a fundamental difference in ethical orientation. Neither is this orientation reducible to concern with truth or the cogency of one’s theoretical constructs, although it is not unrelated to these. Where the philosopher differs from the sophist is in terms of the choice for a way of life that is oriented by the pursuit of knowledge as a good in itself while remaining cognisant of the necessarily provisional nature of this pursuit.