On the later Platonic dialogue. What is a sophist? These were guys in Ancient Greece who taught young people the tools of philosophy and rhetoric. They claimed to teach virtue. In Sophist, “the Eleatic Stranger” (i.e., not Socrates) tries to figure out what a sophist really is, using a new “method of division.” This Plato era provides a nice transition to the category man Aristotle, and the whole concern with sophistry is certainly still relevant today!