The suggestion remains that we may get a basis for morality which is both objective and permanent from that more complete view of the universe which is given or which is sought by metaphysics. Metaphysics aims at completeness. That is, indeed, its predominant characteristic as a body of knowledge. It may begin with the part, if you like, with the 'flower in the crannied wall'; but when that is seen in all its relations to the rest of the world, then you will 'know what God and man is,' If the universe is a whole, then, beginning at any point, with any detail, if you only push the enquiry far enough, you are bound to become metaphysical: for you are attempting to understand reality as a whole.

In this Metaphysics resembles Religion. Both seek the ultimate, the final, the whole. But Metaphysics is distinguished from Religion in seeking the whole only by way of knowledge. So far it is like any other science. It is a process or the result of a process of knowledge. It seeks to know reality as a whole, and in knowing a part to know it in its relations to the whole. Religion also considers everything in its relation to the whole. But in religion knowledge is not the fundamental thing: its object is to relate man to God, in his consciousness, and in his life as a whole.

The theory of evolution itself very often tends to become a metaphysical theory. It does so when it holds the course of development which it traces to be either itself the ultimate reality or the most adequate appearance of that reality. This theory is now commonly known by the name of Naturalism; according to it the facts dealt with by the natural sciences are the only reality which is knowable; man's nature is part of these and has to be adapted to them, and there is nothing further with which it can be brought into relation. This theory is not the same as the scientific theory of evolution, nor is it a necessary consequence of it; but in the minds of many the two go together. The conclusion of the preceding argument—that the ethical significance of evolution is not deep enough to give any answer to the fundamental question of morals—is not a criticism of the theory of evolution so far as restricted to the domain of science, but it is a criticism of the Naturalism which professes to be a final philosophy.

III.

ETHICS AND IDEALISM.

There has been no movement of metaphysical thought in our time which can be compared for its widespread influence or for its general acceptance with the theory of evolution in biological science. Intimate as is its connexion with the progress of science, metaphysics does not keep step with it,—any more than it simply marks time as the former advances. It reflects the influence of each new generalisation of science; but if and so far as it reflects this influence only, it cannot be an adequate metaphysics. Metaphysics must re-think each new fact brought to light, each new generalisation established by science. It must think them in their relation to the whole, and attempt to understand them by setting them in their place in the complete system of knowledge and reality. This complete system is indeed an ideal, never adequately comprehended by the human mind; but it is nevertheless the ideal which determines all efforts of constructive philosophy—including those efforts which take the generalisation of some special science as their all-comprehending principle. An attempt of this kind to make a philosophy out of a scientific generalisation has in our own time been the obvious result of the theory of evolution, and has given new vogue to the philosophical system called Naturalism. That system draws its strength from the scientific doctrine of evolution; but as a philosophy it gives an extended application to the generalisation established by a group of sciences, and valid for the facts within their range. It interprets the law of development which rules the sequences of nature as the highest attainable principle for explaining the system of things. Some of the questions which it leaves unanswered, and some of the facts which it overlooks, have been pointed out in last lecture. Of this theory perhaps enough has already been said.

In spite of the increased vogue which naturalism has obtained from its alliance with triumphant evolutionism, it cannot be said to represent the prevailing type of thought amongst the English metaphysicians of the last generation. That generation was remarkable for the reappearance in this country of a reasoned Idealism; and all forms of Idealism have at least this in common, that they refuse to look upon the material process as the ultimate character of reality—so far as reality is known or knowable.

It may also be said—and this is a characteristic which is not merely negative—that all forms of Idealism agree in ascribing special significance to the moral and religious aspects of life. This holds true of the great idealists, different as their types of thought may be—of Plato and Aristotle, of Spinoza and Leibniz, of Kant, Fichte, and Hegel. It holds true also of the leading representatives of recent English idealism. But the ethical tone of a treatise and the ethical interest of its author are not always a guarantee that ethical conceptions have a secure position in his system of thought. This is the case, I think, with Spinoza; and it seems to me to hold also of some writers of the present day. Mr Bradley, for instance, is perhaps the most influential, as he is without doubt not the least brilliant, of contemporary metaphysicians; he carries on the tradition of a school of thought predominantly ethical; his first book was a defence of the ethical positions of that school; but, if we turn to the elaborate metaphysical treatise which has resulted from his mature reflexion, its most impressive feature will be found to be the almost complete bankruptcy of the system in the region of ethics.

Not only had this idealist movement in its beginnings a predominantly ethical tone. It was really started in the interest of moral ideals as well as of intellectual thoroughness; and its contribution of greatest value to English thought was a work on ethics. The 'Prolegomena to Ethics' of T.H. Green was a fitting result of his unwearied controversies in defence of the spiritual nature of man and the universe. No one is more worthy than he to be called by the Platonic name a 'friend of ideas,' And he was a friend of ideas because he saw their necessity for maintaining and realising the higher capacities of human life. Green's 'Prolegomena' was published in 1883, the year after his death. And, had I been speaking twenty years ago, I should have had to emphasise the ethical character of the metaphysics of the day. His metaphysical thinking, through all its subtleties, never strayed far from the moral ideal. Owing to his teaching that ideal, and the general character of the philosophy with which it was associated, have permeated a great part of the better thought of the present day, and have influenced its practical activities in various directions,—social, political, and religious. But the magnetism of his personality has been removed; and those whose business it is to test intellectual notions have been impressed by the difficulties involved in Green's metaphysical positions and in his connexion of them with morality.

The single word 'self-realisation' has been taken to express the view of the moral ideal enforced by Green. And it is as suitable as any single word could be. But it is clear that, in every action whatever of a conscious being, self-realisation may be said to be the end: some capacity is being developed, satisfaction is being sought for some desire. A man may develop his capacities, seek and to some extent attain satisfaction—in a manner, realise himself—not only in devotion to a scientific or artistic ideal or in labours for the common good, but also in selfish pursuit of power or even in sensual enjoyment. So far as the word 'self-realisation' can be made to cover such different activities, it is void of moral content and cannot express the nature of the moral ideal. Green is perfectly alive to the need of a distinction—and to the difficulty of drawing it. According to his own statement it is true not only of moral activity but of every act of willing that in it "a self-conscious individual directs himself to the realisation of some idea, as to an object in which for the time he seeks self-satisfaction."[1] And he proceeds to ask the question, "How can there be any such intrinsic difference between the objects willed as justifies the distinction which 'moral sense' seems to draw between good and bad action, between virtue and vice? And if there is such a difference, in what does it consist?"[2] Now we may define a good action as the sort of action which proceeds from a good man; or we may define a good man as a man who performs good actions. And for each method of definition something may be said. But if we adopt both methods together and say in one breath that good is what the good man does and that the good man is he who does good, is our logic any better than that of the ordination-candidate who defined the functions of an archdeacon as archdiaconal functions? And yet Green comes very near to describing this logical circle. "The moral good," he says, is "that which satisfies the desire of amoral agent"; but "the question, … What do we mean by calling ourselves moral agents? is one to which a final answer cannot be given without an answer to the question, What is moral good?"[3]