Phenomena had for Plato existence without reality, that is, without intelligibility or value. They were a mere appearance. We need not be surprised, then, that he refused altogether to construct a theology by the poetic interpretation of phenomena and preferred to construct one allegorically out of his moral conceptions, the good and the ideal. Aristotle, too, while adhering incidentally, as we have seen, to a purified astronomical theology, capped this with a purified moral theology of his own. The Platonic picture-gallery of ideas, with the abstract principle of excellence that unified them, gave place in his philosophy to an Ideal realized in the concrete and existing as an individual. We may venture to say that among the thinkers of all nations Aristotle was the first to reach the conception of what may fitly be called God. Neither the national deity of the Hebrews, as then conceived, nor the natural deities of the Gentiles, nor the half-physical, half-logical abstractions of the earlier Greek philosophers really corresponded to the notion of a being spiritual, personal, and perfect, immutable without being abstract, and omnipotent without effort and without degradation. Aristotle first constructed this ideal, not out of his fancy, but by building on the solid ground of human nature and following to their point of union the lines which moral aspiration and effort actually follow. Nay, the ideal he pointed to was to be the goal not of human life only but of natural life in all its forms. The analytic study of Nature (a study which at the same time must be imaginative and sympathetic) could guide us to the conception of her inner needs and tendencies and of what their proper fulfilment would be. We could then see that this fulfilment would lie in intelligence and thought. Growth is for the sake of the fruition of life, and the fruition of life consists in the pursuit and attainment of objects. The moral virtues belong to the pursuit, the intellectual to the attainment. Knowledge is the end of all endeavour, the justification and fulfilment of all growth. Intelligence is the clarification of love.
A being, then, whose life should be a life of pure and complete knowledge, would embody the goal toward which all Nature strives. When we ponder duly the short phrases in which Aristotle propounds his conception of God we find that he has called up before us the noblest possible object of human thought, the presentiment of that thought's perfect fulfilment. There is no alloy of naturalism in this conception, and at the same time no suspicion of irrelevancy. This God is not a mere title of honour for the psycho-physical universe, confusedly conceived and lumped together; he is an ultra-mundane ideal, to be an inviolate standard and goal for all moving reality. Yet he is not irrelevant to the facts and forces of the world, not the dream of an abstracted poet. He is an idea which reality everywhere evokes in evoking its own deepest craving and need. Nothing is so pertinent and momentous in life as the object we are trying to attain by thought or action, since that object is the source of our inspiration and the standard of our success. Thus Aristotle's God is not superfluous, not invented. This theology is a true idealism, I mean an idealism itself purely ideal, which establishes the authority of human demands, ethical, and logical, without impugning the existence or efficacy of that material universe which it endows with a meaning and a standard.
Yet this rational conception, the natural out-growth of the Socratic philosophy, establishes a dualism between the actual and the ideal against which the human mind easily rebels. Aristotle himself was hardly faithful to it. He tried to prove the existence of his God, and existence is something quite irrelevant to an ideal. This confusion is very excusable, especially in an age when the strictly mechanical view of Nature still seemed hopelessly inadequate. Aristotle consequently tried to understand the natural world by viewing it systematically from the point of view of moral science, as Plato had done less coherently in his myths; and hence came what we must regard as the great error of Aristotle's philosophy, the belief in the efficacy of final causes and in the preëxistence of entelechies. But, apart from this unhappy question of existence, which is, as we have said, irrelevant to an ideal, Aristotle's conception of God remains, perhaps, the most philosophical that has yet been constructed. Without any concessions to sentiment or superstition, it presents us with a sublime vision of the essentially human, of a nature as free from an unworthy anthropomorphism as from an inhuman abstractness. It is made both human and superhuman by the same principle of idealization. It is the final cause of Nature and man, the realization of their imminent upward effort, the essence that would contain all their values and escape all their imperfections.
We may well doubt, however, whether men in general will ever be ready to accept so austere a theology in guise of a religion; they were certainly not ready to do so at the end of the classical period. The inheritance of Paganism fell instead to Christianity, in which ethical and naturalistic elements were again united, although united in a new way. For, while the scheme of Paganism, and of all the philosophies that sought to rationalize Paganism, was cosmic and static, the scheme of Christianity was historical. They spoke of the dynamic relations of heaven and earth, or of the immutable hierarchy of ideas and essences; even Aristotle's God was somehow in spatial relations to the Universe which he set in motion. The religion of the Hebrews, on the other hand, had been essentially historical and civic: it had been concerned with the moral destinies of Israel and the dealings of Jehovah with his people. Christianity inherited this historical character; its mysteries occurred in time. Not only the redemption of the world but the vocation and sanctification of the individual were progressive, and when the habits and problems of Christian theology were carried over by the German idealists into the region of pure metaphysics, the systems they conceived were still systems of evolution. God was to be manifest in the development of things. For Christianity in its own way had spoken from the beginning of a gradual and yet to be completed descent of the divine into the natural by the agency of prophecy, law, and sacramental institutions; it had represented the relations of God to man in a vast historic drama, of which creation constituted the opening, the fall and redemption the nexus, and the last judgment the unravelling.
Thus appeared a new scheme for the unification of the natural and the moral. The harmony which the old religion had failed to establish in space and in Nature, the new sought to establish in history and in time. It was hoped that life and experience, sin and redemption, might manifest that divinity which had fled out of the sea and sky, and which it seemed sacrilege to identify any longer with the animal vitality of the universe. Whether the same criticism that disintegrated mythology and isolated its elements of science and of poetry would not be fatal to the new combination of the moral and the factual in the history of man, is hardly a question for us here. Suffice it to point out the problem and to register the solution which was found in the ancient world to the analogous problem that presented itself there. The first impulse of the imagination is always to combine in the object all the elements which lie together in the mind, to project them indiscriminately into a single conception of reality, enriched with as many qualities as there are phases and values in our experience. But these phases and values have diverse origins and do not permanently hang together. It becomes after a while impossible to keep them attached to a single image; they have to be distributed according to their true order and connections, some objectified into a physical universe of mechanism and law, others built into a system of rational objects, into a hierarchy of logical and moral ideas. So the lovely pantheon of the Greeks yielded in time to analysis and was dissolved into abstract science and conscious fable. So, too, the body and soul of later religions may come to be divided, when they render back to earth what they contain of positive history and to the heaven of man's indomitable idealism what they contain of aspiration and hope.
[IV]
THE POETRY OF CHRISTIAN DOGMA
The deathbed of Paganism was surrounded by doctors. Some, the Stoics, advised a conversion into pantheism (with an allegorical interpretation of mythology to serve the purposes of edification); others, the Neo-Platonists, prescribed instead a supernatural philosophy, where the efficacy of all traditional rites would be justified by incorporation into a system of universal magic, and the gods would find their place among the legions of spirits and demons that were to people the concentric spheres. But these doctors had no knowledge of the patient's natural constitution; their medicines, prescribed with the best intentions, were in truth poisons and only hastened the inevitable end. Nor had the unfortunate doctors the consolation of being heirs. Parasites that they were, they perished with the patron on whose substance they had fed, and Christianity, their despised rival, came into sole possession.
Yet Neo-Platonism, for all we can see, responded as well as Christianity to the needs of the time, and had besides great external advantages in its alliance with tradition, with civil power, and with philosophy. If the demands of the age were for a revealed religion and an ascetic morality, Neo-Platonism could satisfy them to the full. Why, then, should the Hellenic world have broken with the creations of its own genius, so plastic, eloquent, and full of resource, to run after foreign gods and new doctrines that must naturally have been stumbling-blocks to its prejudices, and foolishness to its intelligence? Shall we say that the triumph of Christianity was a miracle? Is it not a doubtful encomium on a religion to say that only by miracle could it come to be believed? Perhaps the forces of human reason and emotion suffice to explain this faith. We prefer to think so; otherwise, however complete and final the triumph of Christianity might be, it would not be justified or beneficent.