I take him to be one who knows wise things, he replied, as his name implies.
And might you not, I said, affirm this of the painter and of the carpenter also: Do not they, too, know wise things? But suppose a person were to ask us: In what are the painters wise? We should answer: In what relates to the making of likenesses, and similarly of other things. And if he were further to ask: What is the wisdom of the Sophist, and what is the manufacture over which he presides?—how should we answer him?
How should we answer him, Socrates? What other answer could there be but that he presides over the art which makes men eloquent?
Yes, I replied, that is very likely true, but not enough; for in the answer a further question is involved: Of what does the Sophist make a man talk eloquently? The player on the lyre may be supposed to make a man talk eloquently about that which he makes him understand, that is about playing the lyre. Is not that true?
Yes.
Then about what does the Sophist make him eloquent? Must not he make him eloquent in that which he understands?
Yes, that may be assumed.
And what is that which the Sophist knows and makes his disciple know?
Indeed, he said, I cannot tell.
Then I proceeded to say: Well, but are you aware of the danger which you are incurring? If you were going to commit your body to some one, who might do good or harm to it, would you not carefully consider and ask the opinion of your friends and kindred, and deliberate many days as to whether you should give him the care of your body? But when the soul is in question, which you hold to be of far more value than the body, and upon the good or evil of which depends the well-being of your all,—about this you never consulted either with your father or with your brother or with any one of us who are your companions. But no sooner does this foreigner appear, than you instantly commit your soul to his keeping. In the evening, as you say, you hear of him, and in the morning you go to him, never deliberating or taking the opinion of any one as to whether you ought to intrust yourself to him or not;—you have quite made up your mind that you will at all hazards be a pupil of Protagoras, and are prepared to expend all the property of yourself and of your friends in carrying out at any price this determination, although, as you admit, you do not know him, and have never spoken with him: and you call him a Sophist, but are manifestly ignorant of what a Sophist is; and yet you are going to commit yourself to his keeping.