Protagoras of Abdera, and Prodicus of Ceos, and a host of others, have only to whisper to their contemporaries: `You will never be able to manage either your own house or your own State until you appoint us to be your ministers of education'-- and this ingenious device of theirs has such an effect in making them love them that their companions all but carry them about on their shoulders.

Euphemus, son of Troezenus, the son of Ceos, was captain of the Ciconian spearsmen.

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.