Several times in the course of the discussion Thrasymachus had made an attempt to get the argument into his own hands, and had been put down by the rest of the company, who wanted to hear the end. But when Polemarchus and I had done speaking and there was a pause, he could no longer hold his peace; and, gathering himself up, he came at us like a wild beast, seeking to devour us. We were quite panic-stricken at the sight of him.He roared out to the whole company: "What folly. Socrates, has taken possession of you all? And why, sillybillies, do you knock under to one another? I say that if you want really to know what justice is, you should not only ask but answer, and you should not seek honour to yourself from the refutation of an opponent, but have your own answer; for there is many a one who can ask and cannot answer. And now I will not have you say that justice is duty or advantage or profit or gain or interest, for this sort of nonsense will not do for me; I must have clearness and accuracy."I was panic-stricken at his words, and could not look at him without trembling. Indeed I believe that if I had not fixed my eye upon him, I should have been struck dumb: but when I saw his fury rising, I looked at him first, and was therefore able to reply to him.Book I, Plato's Republic