On the Platonic dialogue written around 380 BCE about an encounter between Socrates and one of the leading Sophists of his day.

What is virtue ("the political art" according to Protagoras), and can it be taught? What are the relations of the various virtues to each other? Do they really amount ultimately to one and the same thing, i.e. wisdom? In this entertaining dialogue, Socrates and Protagoras swap positions, and Socrates seems to parody the Sophists' style.

Don't wait for part two; get the full, ad-free Citizen Edition now. Please support PEL!

Sponsor: Visit thegreatcoursesplus.com/PEL for a free trial of The Great Courses Plus Video Learning Service.