Neither can we be absolutely certain that Socrates himself taught the immortality of the soul, which is unknown to his disciple Glaucon in the Republic (cp. Apol.); nor is there any reason to suppose that he used myths or revelations of another world as a vehicle of instruction, or that he would have banished poetry or have denounced the Greek mythology. His favorite oath is retained, and a slight mention is made of the daemonium, or internal sign, which is alluded to by Socrates as a phenomenon peculiar to himself. A real element of Socratic teaching, which is more prominent in the Republic than in any of the other Dialogues of Plato, is the use of example and illustration (Greek): 'Let us apply the test of common instances.' 'You,' says Adeimantus, ironically, in the sixth book, 'are so unaccustomed to speak in images.' And this use of examples or images, though truly Socratic in origin, is enlarged by the genius of Plato into the form of an allegory or parable, which embodies in the concrete what has been already described, or is about to be described, in the abstract. Thus the figure of the cave in Book VII is a recapitulation of the divisions of knowledge in Book VI. The composite animal in Book IX is an allegory of the parts of the soul. The noble captain and the ship and the true pilot in Book VI are a figure of the relation of the people to the philosophers in the State which has been described. Other figures, such as the dog, or the marriage of the portionless maiden, or the drones and wasps in the eighth and ninth books, also form links of connexion in long passages, or are used to recall previous discussions.
Plato is most true to the character of his master when he describes him as 'not of this world.' And with this representation of him the ideal state and the other paradoxes of the Republic are quite in accordance, though they cannot be shown to have been speculations of Socrates. To him, as to other great teachers both philosophical and religious, when they looked upward, the world seemed to be the embodiment of error and evil. The common sense of mankind has revolted against this view, or has only partially admitted it. And even in Socrates himself the sterner judgement of the multitude at times passes into a sort of ironical pity or love. Men in general are incapable of philosophy, and are therefore at enmity with the philosopher; but their misunderstanding of him is unavoidable: for they have never seen him as he truly is in his own image; they are only acquainted with artificial systems possessing no native force of truth—words which admit of many applications. Their leaders have nothing to measure with, and are therefore ignorant of their own stature. But they are to be pitied or laughed at, not to be quarrelled with; they mean well with their nostrums, if they could only learn that they are cutting off a Hydra's head. This moderation towards those who are in error is one of the most characteristic features of Socrates in the Republic. In all the different representations of Socrates, whether of Xenophon or Plato, and amid the differences of the earlier or later Dialogues, he always retains the character of the unwearied and disinterested seeker after truth, without which he would have ceased to be Socrates.
Leaving the characters we may now analyse the contents of the Republic, and then proceed to consider (1) The general aspects of this Hellenic ideal of the State, (2) The modern lights in which the thoughts of Plato may be read.
BOOK I. The Republic opens with a truly Greek scene—a festival in honour of the goddess Bendis which is held in the Piraeus; to this is added the promise of an equestrian torch-race in the evening. The whole work is supposed to be recited by Socrates on the day after the festival to a small party, consisting of Critias, Timaeus, Hermocrates, and another; this we learn from the first words of the Timaeus.
When the rhetorical advantage of reciting the Dialogue has been gained, the attention is not distracted by any reference to the audience; nor is the reader further reminded of the extraordinary length of the narrative. Of the numerous company, three only take any serious part in the discussion; nor are we informed whether in the evening they went to the torch-race, or talked, as in the Symposium, through the night. The manner in which the conversation has arisen is described as follows:—Socrates and his companion Glaucon are about to leave the festival when they are detained by a message from Polemarchus, who speedily appears accompanied by Adeimantus, the brother of Glaucon, and with playful violence compels them to remain, promising them not only the torch-race, but the pleasure of conversation with the young, which to Socrates is a far greater attraction. They return to the house of Cephalus, Polemarchus' father, now in extreme old age, who is found sitting upon a cushioned seat crowned for a sacrifice. 'You should come to me oftener, Socrates, for I am too old to go to you; and at my time of life, having lost other pleasures, I care the more for conversation.' Socrates asks him what he thinks of age, to which the old man replies, that the sorrows and discontents of age are to be attributed to the tempers of men, and that age is a time of peace in which the tyranny of the passions is no longer felt. Yes, replies Socrates, but the world will say, Cephalus, that you are happy in old age because you are rich. 'And there is something in what they say, Socrates, but not so much as they imagine—as Themistocles replied to the Seriphian, "Neither you, if you had been an Athenian, nor I, if I had been a Seriphian, would ever have been famous," I might in like manner reply to you, Neither a good poor man can be happy in age, nor yet a bad rich man.' Socrates remarks that Cephalus appears not to care about riches, a quality which he ascribes to his having inherited, not acquired them, and would like to know what he considers to be the chief advantage of them. Cephalus answers that when you are old the belief in the world below grows upon you, and then to have done justice and never to have been compelled to do injustice through poverty, and never to have deceived anyone, are felt to be unspeakable blessings. Socrates, who is evidently preparing for an argument, next asks, What is the meaning of the word justice? To tell the truth and pay your debts? No more than this? Or must we admit exceptions? Ought I, for example, to put back into the hands of my friend, who has gone mad, the sword which I borrowed of him when he was in his right mind? 'There must be exceptions.' 'And yet,' says Polemarchus, 'the definition which has been given has the authority of Simonides.' Here Cephalus retires to look after the sacrifices, and bequeaths, as Socrates facetiously remarks, the possession of the argument to his heir, Polemarchus...
The description of old age is finished, and Plato, as his manner is, has touched the key-note of the whole work in asking for the definition of justice, first suggesting the question which Glaucon afterwards pursues respecting external goods, and preparing for the concluding mythus of the world below in the slight allusion of Cephalus. The portrait of the just man is a natural frontispiece or introduction to the long discourse which follows, and may perhaps imply that in all our perplexity about the nature of justice, there is no difficulty in discerning 'who is a just man.' The first explanation has been supported by a saying of Simonides; and now Socrates has a mind to show that the resolution of justice into two unconnected precepts, which have no common principle, fails to satisfy the demands of dialectic.
...He proceeds: What did Simonides mean by this saying of his? Did he mean that I was to give back arms to a madman? 'No, not in that case, not if the parties are friends, and evil would result. He meant that you were to do what was proper, good to friends and harm to enemies.' Every act does something to somebody; and following this analogy, Socrates asks, What is this due and proper thing which justice does, and to whom? He is answered that justice does good to friends and harm to enemies. But in what way good or harm? 'In making alliances with the one, and going to war with the other.' Then in time of peace what is the good of justice? The answer is that justice is of use in contracts, and contracts are money partnerships. Yes; but how in such partnerships is the just man of more use than any other man? 'When you want to have money safely kept and not used.' Then justice will be useful when money is useless. And there is another difficulty: justice, like the art of war or any other art, must be of opposites, good at attack as well as at