The Republic, Book III

When a carpenter is ill he asks the physician for a rough and ready cure; an emetic or a purge or a cautery or the knife,—these are his remedies. And if some one prescribes for him a course of dietetics, and tells him that he must swathe and swaddle his head, and all that sort of thing, he replies at once that he has no time to be ill, and that he sees no good in a life which is spent in nursing his disease to the neglect of his customary employment; and therefore bidding good-bye to this sort of ...

To keep watch-dogs, who, from want of discipline or hunger, or some evil habit or other, would turn upon the sheep and worry them, and behave not like dogs but wolves, would be a foul and monstrous thing in a shepherd? Truly monstrous, he said. And therefore every care must be taken that our auxiliaries, being stronger than our citizens, may not grow to be too much for them and become savage tyrants instead of friends and allies? Yes, great care should be taken. And would not a really good education furnish the best safeguard? But they are well-educated already, ...