The Sophists, Callias and Evenus
Very many of those here present are witnesses to the truth of this, and to them I appeal. Speak then, you who have heard me, and tell your neighbours whether any of you have ever known me hold forth in few words or in many upon such matters.... You hear their answer. And from what they say of this part of the charge you will be able to judge of the truth of the rest.
As little foundation is there for the report that I am a teacher, and take money; this accusation has no more truth in it than the other. Although, if a man were really able to instruct mankind, to receive money for giving instruction would, in my opinion, be an honour to him.
There is Gorgias of Leontium, and Prodicus of Ceos, and Hippias of Elis, who go the round of the cities, and are able to persuade the young men to leave their own citizens by whom they might be taught for nothing, and come to them whom they not only pay, but are thankful if they may be allowed to pay them.
There is at this time a Parian philosopher residing in Athens, of whom I have heard; and I came to hear of him in this way:—I came across a man who has spent a world of money on the Sophists, Callias, the son of Hipponicus, and knowing that he had sons, I asked him: ‘Callias,’ I said, ‘if your two sons were foals or calves, there would be no difficulty in finding some one to put over them; we should hire a trainer of horses, or a farmer probably, who would improve and perfect them in their own proper virtue and excellence; but as they are human beings, whom are you thinking of placing over them?