Plato also addressed a dialogue to him.
VII. Philochorus relates that, as he was sailing to Sicily his ship was wrecked, and that this circumstance is alluded to by Euripides in his Ixion; and some say that he died on his journey, being about ninety years old. But Apollodorus states his age at seventy years, and says that he was a sophist forty years, and that he flourished about the eighty-fourth Olympiad. There is an epigram upon him written by myself, in the following terms:—
I hear accounts of you, Protagoras,
That, travelling far from Athens, on the road,
You, an old man, and quite infirm, did die.
For Cecrops’ city drove you forth to exile;
But you, though ’scaping dread Minerva’s might,
Could not escape the outspread arms of Pluto.
VIII. It is said that once, when he demanded of Evathlus his pupil payment for his lessons, Evathlus said to him, “But I have never been victorious in an argument;” and he rejoined, “But if I gain my cause, then I should naturally receive the fruits of my victory, and so would you obtain the fruits of yours.”
IX. There was also another Protagoras, an astronomer, on whom Euphorion wrote an elegy; and a third also, who was a philosopher of the Stoic sect.