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

by William Kingdon Clifford

2. He had a conscience.

3. The action was one in regard to the doing or not doing of which conscience might be a sufficient motive.

These three things are necessary, but it does not follow that they are sufficient. It is very commonly said that the action must be a voluntary one. It will be found, I think, that this is contained in my third condition, and also that the form of statement I have adopted exhibits more clearly the reason why the condition is necessary. We may say that an action is involuntary either when it is instinctive, or when one motive is so strong that there is no voluntary choice between motives. An involuntary cough produced by irritation of the glottis is no proper subject for blame or praise. A man is not responsible for it, because it is done by a part of his body without consulting him. What is meant by him in this case will require further investigation. Again, when a dipsomaniac has so great and overmastering an inclination to drink that we cannot conceive of conscience being strong enough to conquer it, he is not responsible for that act, though he may be responsible for having got himself into the state. But if it is conceivable that a very strong conscience fully brought to bear might succeed in conquering the inclination, we may take a lenient view of the fall and say there was a very strong temptation, but we shall still regard it as a fall, and say that the man is responsible and a wrong has been done.

But since it is just in this distinction between voluntary and involuntary action that the whole crux of the matter lies, let us examine more closely into it. I say that when I cough or sneeze involuntarily, it is really not I that cough or sneeze, but a part of my body which acts without consulting me. This action is determined for me by the circumstances, and is not part of the choice that is left to me, so that I am not responsible for it. The question comes then to determining how much is to be called circumstances, and how much is to be called me. Now I want to describe what happens when I voluntarily do anything, and there are two courses open to me. I may describe the things in themselves, my feelings and the general course of my consciousness, trusting to the analogy between my consciousness and yours to make me understood; or I may describe these things as nature describes them to your senses, namely in terms of the phenomena of my nervous system, appealing to your memory of phenomena and your knowledge of physical action. I shall do both, because in some respects our knowledge is more complete from the one source, and in some respects from the other. When I look back and reflect upon a voluntary action, I seem to find that it differs from an involuntary action in the fact that a certain portion of my character has been consulted. There is always a suggestion of some sort, either the end of a train of thought or a new sensation; and there is an action ensuing, either the movement of a muscle or set of muscles, or the fixing of attention upon something. But between these two there is a consultation, as it were, of my past history. The suggestion is viewed in the light of everything bearing on it that I think of at the time, and in virtue of this light it moves me to act in one or more ways. Let us first suppose that no hesitation is involved, that only one way of acting is suggested, and I yield to this impulse and act in the particular way. This is the simplest kind of voluntary action. It differs from involuntary or instinctive action in the fact that with the latter there is no such conscious consultation of past history. If we describe these facts in terms of the phenomena which picture them to other minds, we shall say that in involuntary action a message passes straight through from the sensory to the motor center, and so on to the muscles, without consulting the cerebrum; while involuntary action the message is passed on from the sensory center to the cerebrum, there translated into appropriate motor stimuli, carried down to the motor center, and so on to the muscles. There may be other differences, but at least there is this difference. Now on the physical side that which determines, what groups of cerebral fibers shall be set at work by the given message, and what groups of motor stimuli shall be set at work by these, is the mechanism of my brain at the time; and on the mental side that which determines what memories shall be called up by the given sensation, and what motives these memories shall bring into action, is my mental character. We may say, then, in this simplest case of voluntary action, that when the suggestion is given it is the character of me which determines the character of the ensuing action; and consequently that I am responsible for choosing that particular course out of those which were left open to me by the external circumstances.

This is when I yield to the impulse. But suppose I do not; suppose that the original suggestion, viewed in the light of memory, sets various motives in action, each motive belonging to a certain class of things which I remember. Then I choose which of these motives shall prevail. Those who carefully watch themselves find out that a particular motive is made to prevail by the fixing of the attention upon that class of remembered things which calls up the motive. The physical side of this is the sending of blood to a certain set of nerves—namely, those whose action corresponds to the memories which are to be attended to. The sending of blood is accomplished by the pinching of arteries; and there are special nerves, called vaso-motor nerves, whose business it is to carry messages to the walls of the arteries and get them pinched. Now this act of directing the attention may be voluntary or involuntary just like any other act. When the transformed and re-enforced nerve-message gets to the vaso-motor center, some part of it may be so predominant that a message goes straight off to the arteries, and sends a quantity of blood to the nerves supplying that part; or the call for blood may be sent back for revision by the cerebrum, which is thus again consulted. To say the same thing in terms of my feelings, a particular class of memories roused by the original suggestion may seize upon my attention before I have time to choose what I will attend to; or the appeal may be carried to a deeper part of my character dealing with wider and more abstract conceptions, which views the conflicting motives in the light of a past experience of motives, and by that light is drawn to one or the other of them.

We thus get to a sort of motive of the second order or motive of motives. Is there any reason why we should not go on to a motive of the third order, and the fourth, and so on? None whatever that I know of, except that no one has ever observed such a thing. There seems plenty of room for the requisite mechanism on the physical side; and no one can say, on the mental side, how complex is the working of his consciousness. But we must carefully distinguish between the intellectual deliberation about motives, which applies to the future and the past, and the practical choice of motives in the moment of will. The former may be a train of any length and complexity: we have no reason to believe that the latter is more than engine and tender.

We are now in a position to classify actions in respect of the kind of responsibility which belongs to them; namely we have—

1. Involuntary or instinctive actions.

2. Voluntary actions in which the choice of motives is involuntary.

3. Voluntary actions in which the choice of motives is voluntary.