Now no principle whatever can be got out of the theory of natural selection, or out of the evolution theory in general, which will decide between these divergent operations. The question may be put, Are we to cultivate the qualities which will give us success in the battle of individual with individual, or are we to cultivate in ourselves qualities which will contribute to the success of the community? All the answer that the evolution theory can give to this question is, that when individual fights with individual, the man with stronger egoistic qualities will succeed, and that when group fights group, those groups that possess stronger altruistic qualities will tend to success. But which set of qualities we are to cultivate, or whether we are to manifest a sort of balance of the two, is a question upon which we can get no light from the theory of evolution considered by itself. And consequently we find a very prevalent, though perhaps hardly ever definitely expressed, code of conduct according to which the individual takes as the guide for his own action the egoistic qualities which give success in the struggle between different individuals, but recommends to all his fellows in the same community that they should cultivate those altruistic qualities which will lead to the advantage of society.
The theory of evolution makes no contribution at all to these questions of worth or validity or moral value which we have been discussing. All one can get out of it is certain canons for living, but none for good living. It may draw one's attention to this fact, if anybody's attention needs to be drawn to it, that existence is prior to wellbeing; but what the nature of wellbeing is—upon that it throws no light.
We have been met by the suggestion that we should interpret by means of the lower or less developed, and again that we should set up a purely physiological standard. But the suggestion overlooks two things: first of all, the difficulties in the application of natural selection itself with its divergent tendencies; and, secondly, the fact that this process of evolution has itself resulted in the development of certain higher activities and higher tendencies, and that there is no good ground for holding that their worth is to be tested by means of the lower qualities out of which they have grown.
Now a good many evolutionist moralists seem to see this, and accordingly restrict themselves almost entirely to what we may call the historical point of view. They show how moral customs and moral ideas adapted to them have arisen, and how these ideas and customs have corresponded with the institutions of the time to which they belonged. Their tendency, accordingly, is to restrict ethics to the question of origin and history and description, to deprive it altogether of what is sometimes called its normative character—that is to say, its character as a science which lays down rules or sets up ideals for conduct. They would take away from it altogether the power of determining and establishing a criterion between right and wrong. In other words, the fundamental ethical question would be entirely excluded from the scope of the science of ethics.[1]
[Footnote 1: Cf. Green, 'Prolegomena to Ethics,' p. 7: "A philosopher who would reconstruct our ethical systems in conformity with the doctrines of evolution and descent, if he would be consistent, must deal less scrupulously with them than perhaps any one has yet been found to do. If he has the courage of his principles, having reduced the speculative part of them to a natural science, he must abolish the practical or preceptive part altogether.">[
That, so far as I can see, is the tendency of a good deal of quite recent writing from the point of view of the evolution school: in the face of controversy and in the face of difficulties to give up the attempt which they started on so confidently thirty years ago,—the attempt to show that evolution affords a means of deciding between right and wrong and of establishing an ideal for human conduct. Failing in this attempt, they seem to turn round and say that ethics should content itself with describing facts instead of laying down a law or setting up an ideal.
Now, whatever truth there may be in the assertion of the difficulty of determining an ideal for conduct, there is one thing certain: that whether or not the ideal can be philosophically or scientifically defined and established, some ideal is always being set up. Human action implies choice, implies the selection of one course rather than another; and the course that is chosen is always chosen for some reason, because it seems better than the course which is passed by. Choice always follows some kind of principle. We may use different principles at different times, we may use badly established principles, we may use uncriticised principles, but principles we do use, and we cannot act voluntarily without using them, even when we are not definitely conscious of them.
It is not possible, therefore, to entertain the suggestion that these principles should be excluded from ethics. Ethics must consider them, even if it should fail in reaching a correct account of them. We are bound to ask, for instance, what principles can decide between those divergent tendencies brought to light by natural selection, between the conditions of success for the group and the conditions of success for the individual? The conflict between individual development and group development is continually pressing to the front The individual cannot reach a high stage of development except in and through a highly developed society. But the efficiency which a highly developed society requires of its members is not the same as individual development; it more commonly implies a specialisation which tends to warp or cramp individual capacity. This is a long familiar opposition. And the theory of evolution can do nothing to reconcile it All it can say is that in certain cases natural selection points one way, and that in certain cases it points the other way. If ethical significance be claimed for it, it must be said that natural selection is divided against itself, and that it is without any principle for reconciling its own divergences.
It is because biological evolution is essentially an historical doctrine that its votaries should not be too eager to apply it directly to ethics. It has accomplished much if able to tell us how things have happened in the past, without also dictating how they ought to take place now. It is specially absurd to say that earlier methods must govern later developments. That is what is done when we are asked to take as our guide in voluntary choice a principle which ignores volition. The whole progress from animal to man and from savage to civilised man shows a gradual supersession of the principle of natural selection by a principle of subjective selection which steadily grows in purposiveness and in intelligence. To say that intelligence should take nature as its guide is to ask civilised man to put off both his civilisation and his manhood.
The course of evolution may describe the working of different principles; but it cannot of itself supply a test of their value. How then is such a test to be got? Can Metaphysics help us? I have pointed out that the evolutionist ethics is relative—implying always a relation between organism and environment—but this relativity is qualified by its objective character. It does do something for morals: it brings man's conduct into relation with the world as a whole. No doubt the environment which more immediately surrounds man is a succession of changing phenomena, so that although the basis we get is objective, nevertheless it is unable to give us a permanent standard of reference. At the same time we may trace in this theory some advance on the older types of ethical thinking spoken of in last lecture. Subjectivity adhered even to the Utilitarian type of thought: for what can be more subjective than the pleasant feeling upon which morality is made by it to depend? There was also a certain subjectivity attaching to the Intuitional type of thought, because the Intuitionists simply referred their judgments to conscience, the law in man, and did not connect conscience with a wider or more objective view of the universe.