pubOne.info present you this new edition. The Protagoras, like several of the Dialogues of Plato, is put into the mouth of Socrates, who describes a conversation which had taken place between himself and the great Sophist at the house of Callias- 'the man who had spent more upon the Sophists than all the rest of the world'- and in which the learned Hippias and the grammarian Prodicus had also shar...