past wrong, but to prevent future wrong, is a proof that certain virtues can be acquired "from study, and exercise, and teaching." In fact, a man's education begins in his cradle. From childhood he is placed under tutors and governors, and stimulated to virtue by admonitions, by threats, or blows. When he arrives at man's estate, the law takes the place of his masters, and compels him to live uprightly. He who rebels against instruction or punishment is either exiled or condemned to death, under the idea that he is incurable. "Who teaches virtue, say you? (Protagoras continues); you might as well ask who teaches Greek. The fact is, all men are its teachers,—parents, guardians, tutors, the laws, society—each and all do their part in forming a man's character."
Socrates professes himself charmed with the eloquence of Protagoras; but there is one little question further upon which he would like to have his opinion. "Is there one virtue, or are there many?" Protagoras, who at first argues that the virtues are separate—like the different features of a man's face—is forced much against his will to admit that holiness is much the same as justice,—and so on with the several others.
Then a line from the poet Simonides is discussed—"It is hard to be good;" and Protagoras, who had been hitherto the chief speaker, is himself put to the question by Socrates, with a reminder that short answers are best for short memories—like his own. This discussion is simply a satire on the verbal criticism so common in that age, and reduced to a science
