Logos is a greek word with a variety of different meanings including, “reason,” “discourse,” and “plea,” among others. Greek philosopher Aristotle provided a definition of logos in his work Rhetoric, where he used logos to mean “reasoned discourse”, specifically in the realm of public speaking.
Aristotle defined logos as the use of evidence and reasoning to support a claim. It is one of the three modes of persuasion, or rhetorical appeals, that Aristotle identified. The other two modes are pathos, which appeals to emotion, and ethos, which appeals to credibility.
