2 thinkers, books, and ideas connected to this field.
Plato's dialogue in which Socrates observes and comments on the sophists Euthydemus and Dionysodorus as they display their eristic art — demonstrating how sophistical argument can prove anything, refute anything, and disorient its hearers — as a contrast to genuine philosophical inquiry.
Greek sophist from Abdera — the first professional educator to charge fees — whose claim that 'man is the measure of all things' is the founding statement of philosophical relativism, and who appears as a sympathetic interlocutor in Plato's Protagoras dialogue.