Collection The classical authors
Protagoras
Greek sophist, from Abdera, c. 490-420 BC
Of his works only a few sentences survive, among them the one about man as the measure of all things.
Works
- Contradictory Arguments (Antilogiai). Two books of opposing arguments.
- On the Gods (Peri theon). Began with doubt about the existence of the gods; said to have been burned in Athens.
- Truth, or Knockdown Arguments (Aletheia ē Kataballontes). Began with “man is the measure of all things”.