Protagoras Through Plato and Aristotle: A Case for the Philosophical Significance of Ancient Relativism

摘要: This chapter explores the treatment that Plato devotes to Protagoras' relativism in first section of Theaetetus . It aims make reader understand subtlety Plato's argument about Protagorean and, at same time, assess its philosophical significance by revealing inextricability ontological and epistemological aspects on which it is built. For this latter aspect, makes reference Margolis' robust relativism. Aristotle treats context his discussion principle non-contradiction (PNC) Metaphysics Γ. The discusses Aristotle's Γ, order show surprisingly share view as regards content takes position against standard opinion among scholars different, even incompatible, ways. Keywords:Aristotle; Γ; Plato; (PNC); Protagoras; relativism;