[Revised entry by Mauro Bonazzi on September 10, 2024.
Changes to: Main text, Bibliography]
Protagoras (490 – 420 BCE ca) was one of the most important sophists and exerted considerable influence in fifth-century intellectual debates. His teaching had a practical and concrete goal, and many of the surviving testimonies and fragments suggest that it was mainly devoted to the development of argumentative techniques. But some of his views also raise important philosophical problems, which were going to be discussed in details by Plato, Aristotle, and many other philosophers. His famous thesis according to which “man is…

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