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.’

And so, with the dissolution of our bodily organism, the music of consciousness would pass away for ever. Perhaps no form of psychology taught in the Greek schools has approached nearer to modern thought than this. It was professed at Thebes by two Pythagoreans, Cebes and Simmias, in the time of Plato. He rightly regarded them as formidable opponents, for they were ready to grant whatever he claimed for the soul in the way of immateriality and superiority to the body, while denying the possibility of its separate existence. We may so far anticipate the course of our exposition as to mention that the direct argument by which he met them was a reference to the moving power of mind, and to the constraint exercised by reason over passionate impulse; characteristics which the analogy with a musical harmony failed to explain. But his chief reliance was on an order of considerations, the historical genesis of which we shall now proceed to trace.

It was by that somewhat slow and circuitous process, the negation of a negation, that spiritualism was finally established. The shadows of doubt gathered still more thickly around futurity before another attempt could be made to remove them. For the scepticism of the Humanists and the ethical dialectic of Socrates, if they tended to weaken the dogmatic materialism of physical philosophy, were at first not more favourable to the new faith which that philosophy had suddenly eclipsed. For the one rejected every kind of supernaturalism; and the other did not attempt to go behind what had been directly revealed by the gods, or was discoverable from an examination of their handiwork. Nevertheless, the new enquiries, with their exclusively subjective direction, paved the way for a return to the religious development previously in progress. By leading men to think of mind as, above all, a principle of knowledge and deliberate action, they altogether freed it from those material associations which brought it under the laws of external Nature, where every finite existence was destined, sooner or later, to be reabsorbed and to disappear. The position was completely reversed when Nature was, as it were, brought up before the bar of Mind to have her constitution determined or her very existence denied by that supreme tribunal. If the subjective idealism of Protagoras and Gorgias made for spiritualism, so also did the teleological religion of Socrates. It was impossible to assert the priority and superiority of mind to matter more strongly than by teaching that a designing intelligence had created the whole visible universe for the exclusive enjoyment of man. The infinite without was in its turn absorbed by the infinite within. Finally, the logical method of Socrates contained in itself the germs of a still subtler spiritualism which Plato now proceeded to work out.

The dialectic theory, considered in its relation to physics, tended to substitute the study of uniformity for the study of mechanical causation. But the general conceptions established by science were a kind of soul in Nature; they were immaterial, they could not be perceived by sense, and yet, remaining as they did unchanged in a world of change, they were far truer, far more real, than the phenomena to which they gave unity and definition. Now these self-existent ideas, being subjective in their origin, readily reacted on mind, and communicated to it those attributes of fixedness and eternal duration which had in truth been borrowed by them from Nature, not by Nature from them. Plato argued that the soul was in possession of ideas too pure to have been derived from the suggestions of sense, and therefore traceable to the reminiscences of an ante-natal experience. But we can see that the reminiscence was all on the side of the ideas; it was they that betrayed their human origin by the birthmark of abstraction and finality—betokening the limitation of man’s faculties and the interest of his desires—which still clung to them when from a temporary law of thought they were erected into an everlasting law of things. As Comte would say, Plato was taking out of his conceptions what he had first put into them himself. And, if this consideration applies to all his reasonings on the subject of immortality, it applies especially to what he regards as the most convincing demonstration of any. There is one idea, he tells us, with which the soul is inseparably and essentially associated—namely, the idea of life. Without this, soul can no more be conceived than snow without cold or fire without heat; nor can death approach it without involving a logical contradiction. To assume that the soul is separable from the body, and that life is inseparable from the soul, was certainly an expeditious method of proof. To a modern, it would have the further disadvantage of proving too much. For, by parity of reasoning, every living thing must have an immortal soul, and every soul must have existed from all eternity. Plato frankly accepted both conclusions, and even incorporated them with his ethical system. He looked on the lower animals as so many stages in a progressive degradation to which human beings had descended through their own violence or sensuality, but from which it was possible for them to return after a certain period of penitence and probation. At other times he describes a hell, a purgatory, and a heaven, not unlike what we read of in Dante, without apparently being conscious of any inconsistency between the two representations. It was, indeed, an inconsistency such as we find in the highest order of intellects, the inconsistency of one who mediated between two worlds, between naturalistic metempsychosis on the one side, and ethical individualism on the other.

It was not merely the immortality, it was the eternity of the soul that Plato taught. For him the expectation of a life beyond the grave was identified with the memory of an ante-natal existence, and the two must stand or fall together. When Shelley’s shipwrecked mother exclaims to her child:—

‘Alas! what is life, what is death, what are we, That when the ship sinks we no longer may be! What! to see thee no more, and to feel thee no more, To be after life what we have been before!’

Her despair is but the inverted image of Plato’s hope, the return to a purer state of being where knowledge will no longer be obscured by passing through the perturbing medium of sight and touch. Again, modern apologists for the injustice and misery of the present system[144] argue that its inequalities will be redressed in a future state. Plato conversely regarded the sufferings of good men as a retribution for former sin, or as the result of a forgotten choice. The authority of Pindar and of ancient tradition generally may have influenced his belief, but it had a deeper ground in the logic of a spiritualistic philosophy. The dualism of soul and body is only one form of his fundamental antithesis between the changeless essence and the transitory manifestations of existence. A pantheism like Spinoza’s was the natural outcome of such a system; but his practical genius or his ardent imagination kept Plato from carrying it so far. Nor in the interests of progress was the result to be regretted; for theology had to pass through one more phase before the term of its beneficent activity could be reached. Ethical conceptions gained a new significance in the blended light of mythology and metaphysics; those who made it their trade to pervert justice at its fountain-head might still tremble before the terrors of a supernatural tribunal; or if Plato could not regenerate the life of his own people he could foretell what was to be the common faith of Europe in another thousand years; and memory, if not hope, is the richer for those magnificent visions where he has projected the eternal conflict between good and evil into the silence and darkness by which our lives are shut in on every side.