Plato seems to have felt very strongly that all virtuous action tends towards a good exceeding in value any temporary sacrifice which it may involve; and the accepted connotation of ethical terms went entirely along with this belief. But he could not see that a particular action might be good for the community at large and bad for the individual who performed it, not in a different sense but in the very same sense, as involving a diminution of his happiness. For from Plato’s abstract and generalising point of view all good was homogeneous, and the welfare of the individual was absolutely identified with the welfare of the whole to which he belonged. As against those who made right dependent on might and erected self-indulgence into the law of life Plato occupied an impregnable position. He showed that such principles made society impossible, and that without honour even a gang of thieves cannot hold together.[140] He also saw that it is reason which brings each individual into relation with the whole and enables him to understand his obligations towards it; but at the same time he gave this reason a personal character which does not properly belong to it; or, what comes to the same thing, he treated human beings as pure entia rationis, thus unwittingly removing the necessity for having any morality at all. On his assumption it would be absurd to break the law; but neither would there be any temptation to break it, nor would any unpleasant consequences follow on its violation. Plato speaks of injustice as an injury to the soul’s health, and therefore as the greatest evil that can befall a human being, without observing that the inference involves a confusion of terms. For his argument requires that soul should mean both the whole of conscious life and the system of abstract notions through which we communicate and co-operate with our fellow-creatures. All crime is a serious disturbance to the latter, for it cannot without absurdity be made the foundation of a general rule; but, apart from penal consequences, it does not impair, and may benefit the former.

While Plato identified the individual with the community by slurring over the possible divergence of their interests, he still further contributed to their logical confusion by resolving the ego into a multitude of conflicting faculties and impulses supposed to represent the different classes of which a State is made up. His opponents held that justice and law emanate from the ruling power in the body politic; and they were brought to admit that supreme power is properly vested in the wisest and best citizens. Transferring these principles to the inner forum, he maintained that a psychological aristocracy could only be established by giving reason a similar control over the animal passions.[141] At first sight, this seemed to imply no more than a return to the standpoint of Socrates, or of Plato himself in the Protagoras. The man who indulges his desires within the limits prescribed by a regard for their safe satisfaction through his whole life, may be called temperate and reasonable, but he is not necessarily just. If, however, we identify the paramount authority within with the paramount authority without, we shall have to admit that there is a faculty of justice in the individual soul corresponding to the objective justice of political law; and since the supreme virtue is agreed on all hands to be reason, we must go a step further and admit that justice is reason, or that it is reasonable to be just; and that by consequence the height of injustice is the height of folly. Moreover, this fallacious substitution of justice for temperance was facilitated by the circumstance that although the former virtue is not involved in the latter, the latter is to a very great extent involved in the former. Self-control by no means carries with it a respect for the rights of others; but where such respect exists it necessitates a considerable amount of self-control.

We trust that the steps of a difficult argument have been made clear by the foregoing analysis; and that the whole process has been shown to hinge on the ambiguous use of such notions as the individual and the community, of which the one is paradoxically construed as a plurality and the other as a unity; justice, which is alternately taken in the sense of control exercised by the worthiest, control of passion in the general interest, control of our passions in the interest of others, and control of the same passions in our own interest; and wisdom or reason, which sometimes means any kind of excellence, sometimes the excellence of a harmonious society, and sometimes the excellence of a well-balanced mind. Thus, out of self-regarding virtue social virtue is elicited, the whole process being ultimately conditioned by that identifying power which was at once the strength and the weakness of Plato’s genius.

Plato knew perfectly well that although rhetoricians and men of the world might be silenced, they could not be converted nor even convinced by such arguments as these. So far from thinking it possible to reason men into virtue, he has observed of those who are slaves to their senses that you must improve them before you can teach them the truth.[L] And he felt that if the complete assimilation of the individual and the community was to become more than a mere logical formula, it must be effected by a radical reform in the training of the one and in the institutions of the other. Accordingly, he set himself to elaborate a scheme for the purpose, our knowledge of which is chiefly derived from his greatest work, the Republic. We have already made large use of the negative criticism scattered through that Dialogue; we have now to examine the positive teaching by which it was supplemented.

IV.

Plato, like Socrates, makes religious instruction the basis of education. But where the master had been content to set old beliefs on a new basis of demonstration, the disciple aimed at nothing less than their complete purification from irrational and immoral ingredients. He lays down two great principles, that God is good, and that He is true.[142] Every story which is inconsistent with such a character must be rejected; so also must everything in the poets which redounds to the discredit of the national heroes, together with everything tending in the remotest degree to make vice attractive or virtue repellent. It is evident that Plato, like Xenophanes, repudiated not only the scandalous details of popular mythology, but also the anthropomorphic conceptions which lay at its foundation; although he did not think it advisable to state his unbelief with equal frankness. His own theology was a sort of star-worship, and he proved the divinity of the heavenly bodies by an appeal to the uniformity of their movements.[143] He further taught that the world was created by an absolutely good Being; but we cannot be sure that this was more than a popular version of the theory which placed the abstract idea of Good at the summit of the dialectic series. The truth is that there are two distinct types of religion, the one chiefly interested in the existence and attributes of God, the other chiefly interested in the destiny of the human soul. The former is best represented by Judaism, the latter by Buddhism. Plato belongs to the psychic rather than to the theistic type. The doctrine of immortality appears again and again in his Dialogues, and one of the most beautiful among them is entirely devoted to proving it. He seems throughout to be conscious that he is arguing in favour of a paradox. Here, at least, there are no appeals to popular prejudice such as figure so largely in similar discussions among ourselves. The belief in immortality had long been stirring; but it had not taken deep root among the Ionian Greeks. We cannot even be sure that it was embraced as a consoling hope by any but the highest minds anywhere in Hellas, or by them for more than a brief period. It would be easy to maintain that this arose from some natural incongeniality to the Greek imagination in thoughts which drew it away from the world of sense and the delights of earthly life. But the explanation breaks down immediately when we attempt to verify it by a wider experience. No modern nation enjoys life so keenly as the French. Yet, quite apart from traditional dogmas, there is no nation that counts so many earnest supporters of the belief in a spiritual existence beyond the grave. And, to take an individual example, it is just the keen relish which Mr. Browning’s Cleon has for every sort of enjoyment which makes him shrink back with horror from the thought of annihilation, and grasp at any promise of a happiness to be prolonged through eternity. A closer examination is needed to show us by what causes the current of Greek thought was swayed.

The great religious movement of the sixth and fifth centuries—chiefly represented for us by the names of Pythagoras, Aeschylus, and Pindar—would in all probability have entirely won over the educated classes, and given definiteness to the half-articulate utterances of popular tradition, had it not been arrested prematurely by the development of physical speculation. We showed in the first chapter that Greek philosophy in its earliest stages was entirely materialistic. It differed, indeed, from modern materialism in holding that the soul, or seat of conscious life, is an entity distinct from the body; but the distinction was one between a grosser and a finer matter, or else between a simpler and a more complex arrangement of the same matter, not between an extended and an indivisible substance. Whatever theories, then, were entertained with respect to the one would inevitably come to be entertained also with respect to the other. Now, with the exception of the Eleates, who denied the reality of change and separation altogether, every school agreed in teaching that all particular bodies are formed either by differentiation or by decomposition and recomposition out of the same primordial elements. From this it followed, as a natural consequence, that, although the whole mass of matter was eternal, each particular aggregate of matter must perish in order to release the elements required for the formation of new aggregates. It is obvious that, assuming the soul to be material, its immortality was irreconcilable with such a doctrine as this. A combination of four elements and two conflicting forces, such as Empedocles supposed the human mind to be, could not possibly outlast the organism in which it was enclosed; and if Empedocles himself, by an inconsistency not uncommon with men of genius, refused to draw the only legitimate conclusion from his own principles, the discrepancy could not fail to force itself on his successors. Still more fatal to the belief in a continuance of personal identity after death was the theory put forward by Diogenes of Apollonia, that there is really no personal identity even in life—that consciousness is only maintained by a perpetual inhalation of the vital air in which all reason resides. The soul very literally left the body with the last breath, and had a poor chance of holding together afterwards, especially, as the wits observed, if a high wind happened to be blowing at the time.

It would appear that even in the Pythagorean school there had been a reaction against a doctrine which its founder had been the first to popularise in Hellas. The Pythagoreans had always attributed great importance to the conceptions of harmony and numerical proportion; and they soon came to think of the soul as a ratio which the different elements of the animal body bore to one another; or as a musical concord resulting from the joint action of its various members, which might be compared to the strings of a lute. But

‘When the lute is broken

Sweet tones are remembered not.’