The Scientific Basis of Morals, and Other Essays / Viz.: Right and Wrong, The Ethics of Belief, The Ethics of Religion

by William Kingdon Clifford

I believe that I am a free agent when my actions are independent of the control of circumstances outside me; and it seems a misuse of language to call me a free agent if my actions are determined by a transcendental Ego who is independent of the circumstances inside me—that is to say, of my character. The expression ‘free will’ has unfortunately been imported into mental science from a theological controversy rather different from the one we are now considering. It is surely too much to expect that good and serviceable English words should be sacrificed to a phantom.

In an admirable book, ‘The Methods of Ethics,’ Mr. Henry Sidgwick has stated, with supreme fairness and impartiality, both sides of this question. After setting forth the ‘almost overwhelming cumulative proof’ of uniformity in human action, he says that it seems ‘more than balanced by a single argument on the other side: the immediate affirmation of consciousness in the moment of deliberate volition.’ ‘No amount of experience of the sway of motives ever tends to make me distrust my intuitive consciousness that in resolving, after deliberation, I exercise free choice as to which of the motives acting upon me shall prevail.’

The only answer to this argument is that it is not ‘on the other side.’ There is no doubt about the deliverance of consciousness; and even if our powers of self-observation had not been acute enough to discover it, the existence of some choice between motives would be proved by the existence of vaso-motor nerves. But perhaps the most instructive way of meeting arguments of this kind is to inquire what consciousness ought to say in order that its deliverances may be of any use in the controversy. It is affirmed, on the side of uniformity, that the feelings in my consciousness in the moment of voluntary choice have been preceded by facts out of my consciousness which are related to them in a uniform manner, so that if the previous facts had been accurately known the voluntary choice might have been predicted. On the other side this is denied. To be of any use in the controversy, then, the immediate deliverance of my consciousness must be competent to assure me of the non-existence of something which by hypothesis is not in my consciousness. Given an absolutely dark room, can my sense of sight assure me that there is no one but myself in it? Can my sense of hearing assure me that nothing inaudible is going on? As little can the immediate deliverance of my consciousness assure me that the uniformity of nature does not apply to human actions.

It is perhaps necessary, in connection with this question, to refer to that singular Materialism of high authority and recent date which makes consciousness a physical agent, ‘correlates’ it with Light and Nerve-force, and so reduces it to an objective phenomenon. This doctrine is founded on a common and very useful mode of speech, in which we say, for example, that a good fire is a source of pleasure on a cold day, and that a man’s feeling of chill may make him run to it. But so also we say that the sun rises and sets every morning and night, although the man in the moon sees clearly that this is due to the rotation of the earth. One cannot be pedantic all day. But if we choose for once to be pedantic, the matter is after all very simple. Suppose that I am made to run by feeling a chill. When I begin to move my leg, I may observe if I like a double series of facts. I have the feeling of effort, the sensation of motion in my leg; I feel the pressure of my foot on the ground. Along with this I may see with my eyes, or feel with my hands, the motion of my leg as a material object. The first series of facts belongs to me alone; the second may be equally observed by anybody else. The mental series began first; I willed to move my leg before I saw it move. But when I know more about the matter, I can trace the material series further back, and find nerve-messages going to the muscles of my leg to make it move. But I had a feeling of chill before I chose to move my leg. Accordingly, I can find nerve-messages, excited by the contraction due to the low temperature, going to my brain from the chilled skin. Assuming the uniformity of nature, I carry forward and backward both the mental and the material series. A uniformity is observed in each, and a parallelism is observed between them, whenever observations can be made. But sometimes one series is known better, and sometimes the other; so that in telling a story we quite naturally speak sometimes of mental facts and sometimes of material facts. A feeling of chill made a man run; strictly speaking, the nervous disturbance which co-existed with that feeling of chill made him run, if we want to talk about material facts; or the feeling of chill produced the form of sub-consciousness which co-exists with the motion of legs, if we want to talk about mental facts. But we know nothing about the special nervous disturbance which co-exists with a feeling of chill, because it has not yet been localized in the brain; and we know nothing about the form of sub-consciousness which co-exists with the motion of legs; although there is very good reason for believing in the existence of both. So we talk about the feeling of chill and the running, because in one case we know the mental side, and in the other the material side. A man might show me a picture of the battle of Gravelotte, and say, ‘You can’t see the battle, because it’s all over, but there is a picture of it.’ And then he might put a chassepot into my hand, and say, ‘We could not represent the whole construction of a chassepot in the picture, but you can examine this one, and find it out.’ If I now insisted on mixing up the two modes of communication of knowledge, if I expected that the chassepots in the picture would go off, and said that the one in my hand was painted on heavy canvas, I should be acting exactly in the spirit of the new materialism. For the material facts are a representation or symbol of the mental facts, just as a picture is a representation or symbol of a battle. And my own mind is a reality from which I can judge by analogy of the realities represented by other men’s brains, just as the chassepot in my hand is a reality from which I can judge by analogy of the chassepots represented in the picture. When, therefore, we ask, ‘What is the physical link between the ingoing message from chilled skin and the outgoing message which moves the leg?’ and the answer is, ‘A man’s Will,’ we have as much right to be amused as if we had asked our friend with the picture what pigment was used in painting the cannon in the foreground, and received the answer, ‘Wrought iron.’ It will be found excellent practice in the mental operations required by this doctrine to imagine a train, the fore part of which is an engine and three carriages linked with iron couplings, and the hind part three other carriages linked with iron couplings; the bond between the two parts being made out of the sentiments of amity subsisting between the stoker and the guard.

To sum up: the uniformity of nature in human actions has been denied on the ground that it takes away responsibility, that it is contradicted by the testimony of consciousness, and that there is a physical correlation between mind and matter. We have replied that the uniformity of nature is necessary to responsibility, that it is affirmed by the testimony of consciousness whenever consciousness is competent to testify, and that matter is the phenomenon or symbol of which mind or quasi-mind is the symbolized and represented thing. We are now free to continue our inquiries on the supposition that nature is uniform.

We began by describing the moral sense of an Englishman. No doubt the description would serve very well for the more civilized nations of Europe; most closely for Germans and Dutch. But the fact that we can speak in this way discloses that there is more than one moral sense, and that what I feel to be right another man may feel to be wrong. Thus we cannot help asking whether there is any reason for preferring one moral sense to another; whether the question, ‘What is right to do?’ has in any one set of circumstances a single answer which can be definitely known.

Clearly, in the first rough sense of the word, this is not true. What is right for me to do now, seeing that I am here with a certain character, and a certain moral sense as part of it, is just what I feel to be right. The individual conscience is, in the moment of volition, the only possible judge of what is right; there is no conflicting claim. But if we are deliberating about the future, we know that we can modify our conscience gradually by associating with people, reading certain books, and paying attention to certain ideas and feelings; and we may ask ourselves, ‘How shall we modify our conscience, if at all? what kind of conscience shall we try to get? what is the best conscience?’ We may ask similar questions about our sense of taste. There is no doubt at present that the nicest things to me are the things I like; but I know that I can train myself to like some things and dislike others, and that things which are very nasty at one time may come to be great delicacies at another. I may ask, ‘How shall I train myself? What is the best taste?’ And this leads very naturally to putting the question in another form, namely, ‘What is taste good for? What is the purpose or function of taste?’ We should probably find as the answer to that question that the purpose or function of taste is to discriminate wholesome food from unwholesome; that it is a matter of stomach and digestion. It will follow from this that the best taste is that which prefers wholesome food, and that by cultivating a preference for wholesome and nutritious things I shall be training my palate in the way it should go. In just the same way our question about the best conscience will resolve itself into a question about the purpose or function of the conscience—why we have got it, and what it is good for.

Now to my mind the simplest and clearest and most profound philosophy that was ever written upon this subject is to be found in the 2d and 3d chapters of Mr. Darwin’s ‘Descent of Man.’ In these chapters it appears that just as most physical characteristics of organisms have been evolved and preserved because they were useful to the individual in the struggle for existence against other individuals and other species, so this particular feeling has been evolved and preserved because it is useful to the tribe or community in the struggle for existence against other tribes, and against the environment as a whole. The function of conscience is the preservation of the tribe as a tribe. And we shall rightly train our consciences if we learn to approve those actions which tend to the advantage of the community in the struggle for existence.

There are here some words, however, which require careful definition. And first the word purpose. A thing serves a purpose when it is adapted to some end; thus a corkscrew is adapted to the end of extracting corks from bottles, and our lungs are adapted to the end of respiration. We may say that the extraction of corks is the purpose of the corkscrew, and that respiration is the purpose of the lungs. But here we shall have used the word in two different senses. A man made the corkscrew with a purpose in his mind, and he knew and intended that it should be used for pulling out corks. But nobody made our lungs with a purpose in his mind, and intended that they should be used for breathing. The respiratory apparatus was adapted to its purpose by natural selection—namely, by the gradual preservation of better and better adaptations, and the killing off of the worse and imperfect adaptations. In using the word purpose for the result of this unconscious process of adaptation by survival of the fittest, I know that I am somewhat extending its ordinary sense, which implies consciousness. But it seems to me that on the score of convenience there is a great deal to be said for this extension of meaning. We want a word to express the adaptation of means to an end, whether involving consciousness or not; the word purpose will do very well, and the adjective purposive has already been used in this sense. But if the use is admitted, we must distinguish two kinds of purpose. There is the unconscious purpose which is attained by natural selection, in which no consciousness need be concerned; and there is the conscious purpose of an intelligence which designs a thing that it may serve to do something which he desires to be done. The distinguishing mark of this second kind, design or conscious purpose, is that in the consciousness of the agent there is an image or symbol of the end which he desires, and this precedes and determines the use of the means. Thus the man who first invented a corkscrew must have previously known that corks were in bottles, and have desired to get them out. We may describe this if we like in terms of matter, and say that a purpose of the second kind implies a complex nervous system, in which there can be formed an image or symbol of the end, and that this symbol determines the use of the means. The nervous image or symbol of anything is that mode of working of part of my brain which goes on simultaneously and is correlated with my thinking of the thing.

Aristotle defines an organism as that in which the part exists for the sake of the whole. It is not that the existence of the part depends on the existence of the whole, for every whole exists only as an aggregate of parts related in a certain way; but that the shape and nature of the part are determined by the wants of the whole. Thus the shape and nature of my foot are what they are, not for the sake of my foot itself, but for the sake of my whole body, and because it wants to move about. That which the part has to do for the whole is called its function. Thus the function of my foot is to support me, and assist in locomotion. Not all the nature of the part is necessarily for the sake of the whole: the comparative callosity of the skin of my sole is for the protection of my foot itself.