Here occurs a sort of interlude, which commences with a declaration on the part of Socrates that he cannot follow a long speech, and therefore he must beg Protagoras to speak shorter. As Protagoras declines to accommodate him, he rises to depart, but is detained by Callias, who thinks him unreasonable in not allowing Protagoras the liberty which he takes himself of speaking as he likes. But Alcibiades answers that the two cases are not parallel. For Socrates admits his inability to speak long; will Protagoras in like manner acknowledge his inability to speak short?
Counsels of moderation are urged first in a few words by Critias, and then by Prodicus in balanced and sententious language: and Hippias proposes an umpire. But who is to be the umpire? rejoins Socrates; he would rather suggest as a compromise that Protagoras shall ask and he will answer, and that when Protagoras is tired of asking he himself will ask and Protagoras shall answer. To this the latter yields a reluctant assent.
Protagoras selects as his thesis a poem of Simonides of Ceos, in which he professes to find a contradiction. First the poet says,
“Hard is it to become good,”
and then reproaches Pittacus for having said, “Hard is it to be good.” How is this to be reconciled? Socrates, who is familiar with the poem, is embarrassed at first, and invokes the aid of Prodicus, the countryman of Simonides, but apparently only with the intention of flattering him into absurdities. First a distinction is drawn between (εἶναι) to be, and (λενέσθαι) to become: to become good is difficult; to be good is easy. Then the word difficult or hard is explained to mean “evil” in the Cean dialect. To all this Prodicus assents; but when Protagoras reclaims, Socrates slyly withdraws Prodicus from the fray, under the pretence that his assent was only intended to test the wits of his adversary. He then proceeds to give another and more elaborate explanation of the whole passage. The explanation is as follows:—
The Lacedaemonians are great philosophers (although this is a fact which is not generally known); and the soul of their philosophy is brevity, which was also the style of primitive antiquity and of the seven sages. Now Pittacus had a saying, “Hard is it to be good”: and Simonides, who was jealous of the fame of this saying, wrote a poem which was designed to controvert it. No, says he, Pittacus; not “hard to be good,” but “hard to become good.” Socrates proceeds to argue in a highly impressive manner that the whole composition is intended as an attack upon Pittacus. This, though manifestly absurd, is accepted by the company, and meets with the special approval of Hippias, who has however a favourite interpretation of his own, which he is requested by Alcibiades to defer.
The argument is now resumed, not without some disdainful remarks of Socrates on the practice of introducing the poets, who ought not to be allowed, any more than flute-girls, to come into good society. Men’s own thoughts should supply them with the materials for discussion. A few soothing flatteries are addressed to Protagoras by Callias and Socrates, and then the old question is repeated, “Whether the virtues are one or many?” To which Protagoras is now disposed to reply, that four out of the five virtues are in some degree similar; but he still contends that the fifth, courage, is unlike the rest. Socrates proceeds to undermine the last stronghold of the adversary, first obtaining from him the admission that all virtue is in the highest degree good:—
The courageous are the confident; and the confident are those who know their business or profession: those who have no such knowledge and are still confident are madmen. This is admitted. Then, says Socrates, courage is knowledge—an inference which Protagoras evades by drawing a futile distinction between the courageous and the confident in a fluent speech.
Socrates renews the attack from another side: he would like to know whether pleasure is not the only good, and pain the only evil? Protagoras seems to doubt the morality or propriety of assenting to this; he would rather say that “some pleasures are good, some pains are evil,” which is also the opinion of the generality of mankind. What does he think of knowledge? Does he agree with the common opinion that knowledge is overcome by passion? or does he hold that knowledge is power? Protagoras agrees that knowledge is certainly a governing power.
This, however, is not the doctrine of men in general, who maintain that many who know what is best, act contrary to their knowledge under the influence of pleasure. But this opposition of good and evil is really the opposition of a greater or lesser amount of pleasure. Pleasures are evils because they end in pain, and pains are goods because they end in pleasures. Thus pleasure is seen to be the only good; and the only evil is the preference of the lesser pleasure to the greater. But then comes in the illusion of distance. Some art of mensuration is required in order to show us pleasures and pains in their true proportion. This art of mensuration is a kind of knowledge, and knowledge is thus proved once more to be the governing principle of human life, and ignorance the origin of all evil: for no one prefers the less pleasure to the greater, or the greater pain to the less, except from ignorance. The argument is drawn out in an imaginary “dialogue within a dialogue,” conducted by Socrates and Protagoras on the one part, and the rest of the world on the other. Hippias and Prodicus, as well as Protagoras, admit the soundness of the conclusion.
Socrates then applies this new conclusion to
