I then went on to say: Now tell me, are you aware upon what sort of hazard you are going to stake your soul? If you had to entrust your body to someone, taking the risk of its being made better or worse, you would first consider most carefully whether you ought to entrust it or not, and would seek the advice of your friends and relations and ponder it for a number of days: but in the case of your soul, which you value much more highly than your body, and on which depends the good or ill condition of all your affairs, according as it is made better or worse, would you omit to consult first with either your father or your brother or one of us your comrades,—as to whether or no you should entrust your very soul to this newly-arrived foreigner; but choose rather, having heard of him in the evening, as you say, and coming to me at dawn, to make no mention of this question, and take no counsel upon it—whether you ought to entrust yourself to him or not; and are ready to spend your own substance and that of your friends, in the settled conviction that at all costs you must converse with Protagoras, whom you neither know, as you tell me, nor have ever met in argument before, and whom you call sophist, in patent ignorance of what this sophist may be to whom you are about to entrust yourself? When he heard this he said: It seems so, Socrates, by what you say. Then can it be, Hippocrates, that the sophist is really a sort of merchant or dealer in provisions on which a soul is nourished? For such is the view I take of him. With what, Socrates, is a soul nourished? With doctrines, presumably, I replied. And we must take care, my good friend, that the sophist, in commending his wares, does not deceive us, as both merchant and dealer do in the case of our bodily food. For among the provisions, you know, in which these men deal, not only are they themselves ignorant what is good or bad for the body, since in selling they commend them all, but the people who buy from them are so too, unless one happens to be a trainer or a doctor. And in the same way, those who take their doctrines the round of our cities, hawking them about to any odd purchaser who desires them, commend everything that they sell, and there may well be some of these too, my good sir, who are ignorant which of their wares is good or bad for the soul; and in just the same case are the people who buy from them, unless one happens to have a doctor’s knowledge here also, but of the soul. So then, if you are well informed as to what is good or bad among these wares, it will be safe for you to buy doctrines from Protagoras or from anyone else you please: but if not, take care, my dear fellow, that you do not risk your greatest treasure on a toss of the dice.

For I tell you there is far more serious risk in the purchase of doctrines than in that of eatables. When you buy victuals and liquors you can carry them off from the dealer or merchant in separate vessels, and before you take them into your body by drinking or eating you can lay them in your house and take the advice of an expert whom you can call in, as to what is fit to eat or drink and what is not, and how much you should take and when; so that in this purchase the risk is not serious. But you cannot carry away doctrines in a separate vessel: you are compelled, when you have handed over the price, to take the doctrine in your very soul by learning it, and so to depart either an injured or a benefited man. These, then, are questions which we have to consider with the aid of our elders, since we ourselves are still rather young to unravel so great a matter. For the moment, however, let us pursue our design and go and hear this person; and when we have heard him we shall proceed to consult others: for Protagoras is not the only one there; we shall find Hippias of Elis and, I believe, Prodicus of Ceos, and numerous other men of wisdom besides. This we resolved on, and set forth; and when we arrived at the doorway, we stood discussing some question or other that had occurred to us by the way: so, not to leave it unfinished, but to get it settled before we went in, we stood there and discussed in front of the door, until we had come to an agreement with each other. Now, I fancy the doorkeeper, who was a eunuch, overheard us; very likely the great number of sophists has made him annoyed with callers at the house: at any rate, when we had knocked on the door, he opened it and, on seeing us,—Hullo, he said, sophists there! Master is engaged. So saying, he seized the door with both hands and very smartly clapped it to with all his might. We tried knocking again, and then he spoke in answer through the closed door,—Sirs, have you not heard, he is engaged? But, my good fellow, I said, we have not come to see Callias, nor are we sophists. Have no fear: I tell you, we have come to ask if we may see Protagoras; so go and announce us. Then with much hesitation the fellow opened the door to us;