It has already been said that however difficult it may be to establish the precise relationship between reason and ethical commands, such a connection must be assumed, whether we base our ethics on naturalistic or supernaturalistic considerations. And it cannot be denied by anyone to-day that a causal relation must exist between actions and their consequences, whether those causal consequences be of the natural and non-moral kind, or of the more definitely moral order such as exists in the shape of social approval and disapproval. And if we once grant that, then it seems quite allowable to assume that provided a man perceives the reason underlying moral judgments, and also the justification for the sense of approval and disapproval expressed, we have as much reason for calling his conduct reasonable or unreasonable as we have for applying the same terms to a man's behaviour in dressing in view of the variations of the temperature.

Consequently, while I agree that in the present state of knowledge it is impossible in all cases to demonstrate that immoral conduct is irrational in the sense that it would be unreasonable to refuse assent to a mathematical proposition, there seems no justification for regarding such a state of things as of necessity permanent. If a scientific system of ethics consists in formulating rules for the profitable guidance of life, not only does their formulation presuppose a certain constancy in the laws of human nature and of the world in general, but the assumption is also involved that one day it may be possible to give to moral laws the same precision that now is attached to physiological laws and to label departure from them as "unreasonable" in a very real sense of the word.

The other objection that it is impossible to establish a "reasonable" relation between individual and social well-being arises from a dual confusion as to what is the proper sphere of ethics, and of the mutual relation of the individual and society. To take an individual and ask, "Why should he act so as to promote the general welfare?" is to imply that ethical rules may have an application to man out of relation with his fellows. That, we have already seen, is quite wrong, since moral rules fail to be intelligible once we separate man from his fellows. Discussing ethics while leaving out social life is like discussing the functions of the lungs and leaving out of account the existence of an atmosphere.

If, then, instead of treating the individual and society as two distinct things, either of which may profit at the expense of the other, we treat them as two sides of the same thing, each an abstraction when treated alone, the problem is simplified, and the solution becomes appreciably easier. For the essential truth here is that just as there is no such thing as a society in the absence of the individuals composing it, so the individual, as we know him, disappears when we strip him of all that he is in virtue of his being a part of the social structure. Every one of the characteristic human qualities has been developed in response to the requirements of the social medium. It is in virtue of this that morality has anything of an imperative nature connected with it, for if man is, to use Sir Leslie Stephen's phrase, a cell in the social tissue, receiving injury as the body social is injured, and benefitting as it is benefitted, then the refusal of a man to act so that he may promote the general welfare can be shown to be unreasonable, and also unprofitable to the individual himself. In other words, our efficiency as an individual must be measured in terms of our fitness to form part of the social structure, and consequently the antithesis between social and personal well-being is only on the surface. Deeper knowledge and a more exact understanding reveals them as two sides of the same fact.

It may be granted to Mr. Kidd that "a large proportion of the existing individuals at any time" have no conscious interest in "the progress of the race or in the development we are undergoing," and that is only what one would expect, but it would be absurd to therefore come to the conclusion that no such identity of interest exists. Molière's character, who all his life had been talking prose without knowing it, is only a type of the majority of folk who all their lives are acting in accordance with principles of which they are ignorant, and which they may even repudiate when they are explained to them. From one point of view the whole object of a scientific morality is to awaken a conscious recognition of the principles underlying conduct, and by this means to strengthen the disposition to right action. We make explicit in language what has hitherto been implicit in action, and thus bring conscious effort to the aid of non-conscious or semi-conscious behaviour.

In the light of the above consideration the long and wordy contest that has been waged between "Altruists" and "Egoists" is seen to be very largely a waste of time and a splutter of words. If it can be shown on the one hand that all men are not animated by the desire to benefit self, it is as easy to demonstrate that so long as human nature is human nature, all conduct must be an expression of individual character, and that even the morality of self-sacrifice is self-regarding viewed from the personal feelings of the agent. And it being clear that the position of Egoist and Altruist, while each expressing a truth, is neither expressing the whole truth, and that each does in fact embody a definite error, it seems probable that here, as in so many other cases, the truth lies between the two extremes, and that a reconciliation may be effected along these lines.

Taking animal life as a whole it is at least clear that what are called the self-regarding feelings must come first in order of development. Even with the lower races of human beings there is less concern shown with the feelings and welfare of others than is the case with the higher races of men. Or, again, with children we have these feelings strongest in childhood and undergoing a gradual expansion as maturity is reached. This is brought about, as was shown in the last chapter, not by the destruction of existing feelings, but by their extension to an ever widening area. There is a transformation, or an elaboration of existing feelings under the pressure of social growth. One may say that ethical development does not proceed by the destruction of the feeling of self-interest, so much as by its extension to a wider field. Ethical growth is thus on all fours with biological growth. In biology we are all familiar with the truth that maintenance of life is dependent upon the existence of harmonious relations between an organism and its environment. Yet it is not always recognized that this principle is as true of the moral self as it is of the physical structure, nor that in human evolution the existence of others becomes of increasing importance and significance. For not only do I have to adapt myself, mentally and morally, to the society now existing, but also to societies that have long since passed away and have left their contribution to the building up of my environment in the shape of institutions and beliefs and literature.

We have in this one more illustration that while the environment of the animal is overwhelmingly physical in character, that of man tends to become overwhelmingly social or psychological. Desires are created that can only be gratified by the presence and the labour of others. Feelings arise that have direct reference to others, and in numerous ways a body of "altruistic" feeling is created. So by social growth first, and afterwards by reflection, man is taught that the only life that is enjoyable to himself is one that is lived in the companionship and by the co-operation of others. As Professor Ziegler well puts the process:—

Not only on the one hand does it concern the interests of the general welfare that every individual should take care of himself outwardly and inwardly; maintain his health; cultivate his faculties and powers; sustain his position, honour, and worth, and so his own welfare being secured, diffuse around him happiness and comfort; but also, on the other hand, it concerns the personal, well understood interests of the individual himself that he should promote the interests of others, contribute to their happiness, serve their interests, and even make sacrifices for them. Just as one forgoes a momentary pleasure in order to secure a lasting and greater enjoyment, so the individual willingly sacrifices his personal welfare and comfort for the sake of society in order to share in the welfare of this society; he buries his individual well-being in order that he may see it rise in richer and fuller abundance in the welfare and happiness of the whole community (Social Ethics, pp. 59-60).

These motives are not of necessity conscious ones. No one imagines that before performing a social action each one sits down and goes through a more or less elaborate calculation. All that has been written on this head concerning a "Utilitarian calculus" is poor fun and quite beside the mark. In this matter, as in so many others, it is the evolutionary process which demands consideration, and generations of social struggle, by weeding out individuals whose inclinations were of a pronounced anti-social kind, and tribes in which the cohesion between its members was weak, have resulted in bringing about more or less of an identification between individual desires and the general welfare. It is not a question of conscious evolution so much as of our becoming conscious of an evolution that is taking place, and in discussing the nature of morals one is bound to go beyond the expressed reasons for conduct—more often wrong than right—and discover the deeper and truer causes of instincts and actions. When this is done it will be found that while it is absolutely impossible to destroy the connection between conduct and self-regarding actions, there is proceeding a growing identity between the gratification of desire and the well-being of the whole. This will be, not because of some fantastical or ascetic teaching of self-sacrifice, but because man being an expression of social life is bound to find in activities that have a social reference the beginning and end of his conduct.