SOCRATES: And do you extend your doctrine, Protagoras (as we shall further say), to the future as well as to the present; and has he the criterion not only of what in his opinion is but of what will be, and do things always happen to him as he expected? For example, take the case of heat:--When an ordinary man thinks that he is going to have a fever, and that this kind of heat is coming on, and another person, who is a physician, thinks the contrary, whose opinion is likely to prove right? Or are they both right?--he will have a heat and fever in his own judgment, and not have a fever in the physician's judgment? THEODORUS: How ludicrous! SOCRATES: And the vinegrower, if I am not mistaken, is a better judge of the sweetness or dryness of the vintage which is not yet gathered than the harp-player? THEODORUS: Certainly. SOCRATES: And in musical composition the musician will know better than the training master what the training master himself will hereafter think harmonious or the reverse? THEODORUS: Of course. SOCRATES: And the cook will be a better judge than the guest, who is not a cook, of the pleasure to be derived from the dinner which is in preparation; for of present or past pleasure we are not as yet arguing; but can we say that every one will be to himself the best judge of the pleasure which will seem to be and will be to him in the future?--nay, would not you, Protagoras, better guess which arguments in a court would convince any one of us than the ordinary man? THEODORUS: Certainly, Socrates, he used to profess in the strongest manner that he was the superior of all men in this respect. SOCRATES: To be sure, friend: who would have paid a large sum for the privilege of talking to him, if he had really persuaded his visitors that neither a prophet nor any other man was better able to judge what will be and seem to be in the future than every one could for himself? THEODORUS: Who indeed? SOCRATES: And legislation and expediency are all concerned with the future; and every one will admit that states, in passing laws, must often fail of their highest interests? THEODORUS: Quite true. SOCRATES: Then we may fairly argue against your master, that he must admit one man to be wiser than another, and that the wiser is a measure: but I, who know nothing, am not at all obliged to accept the honour which the advocate of Protagoras was just now forcing upon me, whether I would or not, of being a measure of anything. THEODORUS: That is the best refutation of him, Socrates; although he is also caught when he ascribes truth to the opinions of others, who give the lie direct to his own opinion.