What is then, really and properly speaking, the cause of the motion in question? It is neither the mind, nor the will; for these might both exist, and yet no such effect result from them. A mind, or a will, that lies still and does not act, is the cause of no effect. If we would speak with philosophical precision, then, we should say that the act of the mind is the cause of the effect in question. The idea of a cause, in the strict and proper sense of the term, is that from which the effect immediately and necessarily flows. Now the motion of the hand is not necessarily connected with the mind itself; for if the mind were to lie still and not act, no such effect would follow. It is with the act of the mind that the effect in question is connected as with its efficient cause. It is the act of the mind which implies the motion of the hand, and that is implied by it; and hence, it is the act of the mind, or the volition, that is properly said to be the cause of such motion. For cause and effect, are said to imply each other.
Now Edwards has not pretended to say how a volition acts upon the external part of our being; if he had done so, he would have been justly obnoxious to the charge of presuming to know how a cause acts, in the proper sense of the word; but he has done no such thing. The connexion between cause and effect, in the proper sense of the terms, he has left enveloped in profound mystery. He has not presumed to say how an act, or cause, properly so called, produces its corresponding effect.
He does not assume to know how a cause acts; but how what is sometimes called a cause really becomes such. The will may be called a cause, if you please; but, in reality, unless it acts, it is the cause of no effect; and even then, properly speaking, the act is the cause. He clearly saw that a will which lies still and does nothing, is the cause of no effect; and hence he stated the simple fact, that it must act in order to become a cause, or, which is the same thing, in order to produce an effect. And is not this perfectly self-evident? We do not know how the will acts, nor how its act produces a change in the external part of our being; but yet do we not certainly know, that a dormant will can do nothing, and that it must act in order to produce an effect. If this be to explain how a cause acts, I humbly conceive that we may do so with perfect propriety.
Indeed, all that is assumed by Edwards, has been conceded to him by most of his adversaries. Thus says Dr. West, as quoted by Edwards the younger, “No being can become a cause, i. e. an efficient, or that which produces an effect, but by first operating, acting, or energizing.” Here we are told, not how a cause acts, but how the mind becomes a cause, or the author of effects. This is all that Edwards takes for granted; and, for aught that I can see, he has done so with perfect propriety.
The same thing is conceded by Dr. Reid. “The change,” says he, “whether it be of thought, of will, or of motion, is the effect. Active power, therefore, is a quality in the cause, which enables it to produce the effect. And the exertion of that active power in producing the effect, is called action, agency, efficiency. In order to the production of any effect, there must be in the cause, not only power, but the exertion of that power.”—Essays on the Active Powers, p. 259. Here it is declared by Dr. Reid, that active power or the will must act, in order to produce an effect, whether the effect be in the mind itself, or out of the mind, whether it be “of thought, of will, or of motion.” This is all that Edwards assumes as the basis of his argument.
But the question is not so much what has been conceded, as what is true. Is it true, then, that if the will causes its own volitions, it can cause them only by preceding volitions? It is, as we have already seen, according to the common acceptation of the terms; for a dormant cause can produce no effect; it must act in order to produce effects. Edwards has truly said, that “if the will be determined, there is a determiner. This must be supposed to be intended even by those that say the will determines itself. If it be so, the will is both determiner and determined; it is a cause that acts and produces effects upon itself, and is the object of its own influence and action.” p. 19. Now, whatever may be the meaning of those who choose to affirm that the will determines itself, admitting that it is both determined and determiner; the conclusion of Edwards seems to be fairly drawn from the language in which their doctrine is expressed. To say the least, he fairly reduces the obvious meaning of their language to the absurdity of an infinite series of volitions.
If the phrase, that the will is determined by itself, has any meaning, it must mean, either that the will is made to act by a preceding act of the will, or that the will simply acts. If the meaning be, that the act or choice of the will is produced by a preceding act of the will, then is the inference of Edwards well drawn, and the self-determining power is involved in the aforesaid ad infinitum absurdity. But if the meaning be, that the will simply acts, why not present the idea in this its true and unambiguous form?
It is evident, that while the will remains inactive, it can produce no effect; it must act, in order to become the author of effects. The effect caused, and the causative act, are clearly distinct; the one produces the other. If the causative act is a volition, then we have an infinite series of volitions. And if it be not a volition, but some other effort of the mind, the same difficulty arises; for if it be necessary to suppose a preceding effort of the mind in order to account for a volition, it will be equally necessary to suppose the existence of another effort to account for that; and so on ad infinitum. And an infinite series of efforts is just as great an absurdity as an infinite series of volitions.
Now let us suppose that, in order to escape these difficulties, an advocate of the self-determining power should deny that there is any causative act of volition; but that volition is itself an act uncaused by any preceding act. According to this view, what does the self-determining power amount to? It amounts to just this, that the will itself acts,—a position which is as freely recognized by Edwards as it could possibly be by the warmest advocate of the self-determining power. If this be all that is meant by self-determination, why not state the simple fact that the will itself acts, in plain English, instead of going about to envelope it in a mist of words? If this be all that is meant, why not state the thing so that it may be acquiesced in by the necessitarian, instead of keeping up such a war of words? Indeed, it appears plain to me, that the assertion that the will is determined by itself, is either false doctrine, or else the language in which it is couched is not a clear and distinct expression of its own meaning. On either supposition, this mode of expression should be abandoned.
I have long been impressed with the conviction, that the self-determining power, as it is generally understood, is full of inconsistencies. While we hold this doctrine, we cannot with a good grace contend that the motive-determining power is involved in the absurdity of an infinite series of causes; for we ourselves are involved in it. Nor can we very well maintain that “a necessary agent is no agent at all;” for the necessitarian will reply, as he always does, that according to our own scheme, our actions are caused; and hence, if it be absurd to speak of a caused action, this is equally true, whether the cause be intrinsic or extrinsic. Moreover, if we should complain that, according to the necessitarian, the phenomena of the will are involved in the “mechanism of cause and effect,” he will be sure to reply, that the same thing is true according to our own scheme, inasmuch as we admit volition to be an effect, and place it under the dominion of an internal cause. These difficulties, as well as some others, have always encumbered the cause of free and accountable agency; just because it has been supposed to consist in the self-determining power of the will. We should, therefore, abandon this doctrine. If Clarke, and Price, and Reid, and West, have not been able to maintain it without running into such inconsistencies, it is high time it should be laid aside forever.