Rhetoric treats of discourse; but music and medicine, and other particular arts, are also concerned with discourse; in what way then does rhetoric differ from them? Gorgias draws a distinction between the arts which deal with words, and the arts which have to do with external actions. Socrates extends this distinction further, and divides all productive arts into two classes: (1) arts which may be carried on in silence; and (2) arts which have to do with words, or in which words are coextensive with action, such as arithmetic, geometry, rhetoric. But still Gorgias could hardly have meant to say that arithmetic was the same as rhetoric. Even in the arts which are concerned with words there are differences. What then distinguishes rhetoric from the other arts which have to do with words? 'The words which rhetoric uses relate to the best and greatest of human things.' But tell me, Gorgias, what are the best? 'Health first, beauty next, wealth third,' in the words of the old song, or how would you rank them? The arts will come to you in a body, each claiming precedence and saying that her own good is superior to that of the rest—How will you choose between them? 'I should say, Socrates, that the art of persuasion, which gives freedom to all men, and to individuals power in the state, is the greatest good.' But what is the exact nature of this persuasion?—is the persevering retort: You could not describe Zeuxis as a painter, or even as a painter of figures, if there were other painters of figures; neither can you define rhetoric simply as an art of persuasion, because there are other arts which persuade, such as arithmetic, which is an art of persuasion about odd and even numbers. Gorgias is made to see the necessity of a further limitation, and he now defines rhetoric as the art of persuading in the law courts, and in the assembly, about the just and unjust. But still there are two sorts of persuasion: one which gives knowledge, and another which gives belief without knowledge; and knowledge is always true, but belief may be either true or false,—there is therefore a further question: which of the two sorts of persuasion does rhetoric effect in courts of law and assemblies? Plainly that which gives belief and not that which gives knowledge; for no one can impart a real knowledge of such matters to a crowd of persons in a few minutes. And there is another point to be considered:—when the assembly meets to advise about walls or docks or military expeditions, the rhetorician is not taken into counsel, but the architect, or the general. How would Gorgias explain this phenomenon? All who intend to become disciples, of whom there are several in the company, and not Socrates only, are eagerly asking:—About what then will rhetoric teach us to persuade or advise the state?
Gorgias illustrates the nature of rhetoric by adducing the example of Themistocles, who persuaded the Athenians to build their docks and walls, and of Pericles, whom Socrates himself has heard speaking about the middle wall of the Piraeus. He adds that he has exercised a similar power over the patients of his brother Herodicus. He could be chosen a physician by the assembly if he pleased, for no physician could compete with a rhetorician in popularity and influence. He could persuade the multitude of anything by the power of his rhetoric; not that the rhetorician ought to abuse this power any more than a boxer should abuse the art of self-defence. Rhetoric is a good thing, but, like all good things, may be unlawfully used. Neither is the teacher of the art to be deemed unjust because his pupils are unjust and make a bad use of the lessons which they have learned from him.
Socrates would like to know before he replies, whether Gorgias will quarrel with him if he points out a slight inconsistency into which he has fallen, or whether he, like himself, is one who loves to be refuted. Gorgias declares that he is quite one of his sort, but fears that the argument may be tedious to the company. The company cheer, and Chaerephon and Callicles exhort them to proceed. Socrates gently points out the supposed inconsistency into which Gorgias appears to have fallen, and which he is inclined to think may arise out of a misapprehension of his own. The rhetorician has been declared by Gorgias to be more persuasive to the ignorant than the physician, or any other expert. And he is said to be ignorant, and this ignorance of his is regarded by Gorgias as a happy condition, for he has escaped the trouble of learning. But is he as ignorant of just and unjust as he is of medicine or building? Gorgias is compelled to admit that if he did not know them previously he must learn them from his teacher as a part of the art of rhetoric. But he who has learned carpentry is a carpenter, and he who has learned music is a musician, and he who has learned justice is just. The rhetorician then must be a just man, and rhetoric is a just thing. But Gorgias has already admitted the opposite of this, viz. that rhetoric may be abused, and that the rhetorician may act unjustly. How is the inconsistency to be explained?
The fallacy of this argument is twofold; for in the first place, a man may know justice and not be just—here is the old confusion of the arts and the virtues;—nor can any teacher be expected to counteract wholly the bent of natural character; and secondly, a man may have a degree of justice, but not sufficient to prevent him from ever doing wrong. Polus is naturally exasperated at the sophism, which he is unable to detect; of course, he says, the rhetorician, like every one else, will admit that he knows justice (how can he do otherwise when pressed by the interrogations of Socrates?), but he thinks that great want of manners is shown in bringing the argument to such a pass. Socrates ironically replies, that when old men trip, the young set them on their legs again; and he is quite willing to retract, if he can be shown to be in error, but upon one condition, which is that Polus studies brevity. Polus is in great indignation at not being allowed to use as many words as he pleases in the free state of Athens. Socrates retorts, that yet harder will be his own case, if he is compelled to stay and listen to them. After some altercation they agree (compare Protag.), that Polus shall ask and Socrates answer.
'What is the art of Rhetoric?' says Polus. Not an art at all, replies Socrates, but a thing which in your book you affirm to have created art. Polus asks, 'What thing?' and Socrates answers, An experience or routine of making a sort of delight or gratification. 'But is not rhetoric a fine thing?' I have not yet told you what rhetoric is. Will you ask me another question—What is cookery? 'What is cookery?' An experience or routine of making a sort of delight or gratification. Then they are the same, or rather fall under the same class, and rhetoric has still to be distinguished from cookery. 'What is rhetoric?' asks Polus once more. A part of a not very creditable whole, which may be termed flattery, is the reply. 'But what part?' A shadow of a part of politics. This, as might be expected, is wholly unintelligible, both to Gorgias and Polus; and, in order to explain his meaning to them, Socrates draws a distinction between shadows or appearances and realities; e.g. there is real health of body or soul, and the appearance of them; real arts and sciences, and the simulations of them. Now the soul and body have two arts waiting upon them, first the art of politics, which attends on the soul, having a legislative part and a judicial part; and another art attending on the body, which has no generic name, but may also be described as having two divisions, one of which is medicine and the other gymnastic. Corresponding with these four arts or sciences there are four shams or simulations of them, mere experiences, as they may be termed, because they give no reason of their own existence. The art of dressing up is the sham or simulation of gymnastic, the art of cookery, of medicine; rhetoric is the simulation of justice, and sophistic of legislation. They may be summed up in an arithmetical formula:—
Tiring : gymnastic :: cookery : medicine :: sophistic : legislation.
And,
Cookery : medicine :: rhetoric : the art of justice.
And this is the true scheme of them, but when measured only by the gratification which they procure, they become jumbled together and return to their aboriginal chaos. Socrates apologizes for the length of his speech, which was necessary to the explanation of the subject, and begs Polus not unnecessarily to retaliate on him.
'Do you mean to say that the rhetoricians are esteemed flatterers?' They are not esteemed at all. 'Why, have they not great power, and can they not do whatever they desire?' They have no power, and they only do what they think best, and never what they desire;