The plain truth is, as we have seen, that President Edwards holds motive to be the producing cause of volition. According to his scheme, “Volitions are necessarily connected with the influence of motives;” they “are brought to pass by the prevailing and effectual influence” of motives. Motive is “the effectual power and efficacy” by which they are “produced.” They are not merely caused to be thus, and not otherwise, by motive; they are “caused to arise and come forth into existence.” This is the great doctrine for which Edwards contends; and this is precisely the doctrine which I deny. I contend against no other kind of necessity but this moral necessity, just as it is explained by Edwards himself.
Here the issue with President Edwards is joined; and I intend to hold him steadily to it. No ambiguity of words shall, for a moment, divert my mind from it. If his arguments, when thoroughly sifted and scrutinized, establish this doctrine; then shall I lay down my arms and surrender at discretion. But if his assumptions are unsound, or his deductions false, I shall hold them for naught. If he reconciles his scheme of moral necessity with the reality of virtue, with the moral agency and accountability of man, and with the purity of God; then I shall lay aside my objections; but if, in reality, he only reconciles it with the semblance of these things, whilst he denies their substance, I shall not be diverted from an opposition to so monstrous a system, by the fair appearances it may be made to wear to the outward eye.
[SECTION III.]
THE INQUIRY INVOLVED IN A VICIOUS CIRCLE.
The great doctrine of the Inquiry seems to go round in a vicious circle, to run into an insignificant truism. This is a grave charge, I am aware, and I have ventured to make it only after the most mature reflection: and the justness of it, may be shown by a variety of considerations.
In the first place, when we ask, “what determines the will?” the author replies, “it is the strongest motive;” and yet, according to his definition, the strongest motive is that which determines the will. Thus, says Edwards, “when I speak of the strongest motive, I have respect to the whole that operates to induce a particular act of volition, whether that be the strength of one thing alone, or of many together.” If we ask, then, what produces any particular act of volition, we are told, it is the strongest motive; and if we inquire what is the strongest motive, we are informed, it is the whole of that which operated to produce that particular act of volition. What is this but to inform us, that an act of volition is produced by that which produces it?
It is taken for granted by President Edwards, that volition is an effect, and consequently has a cause. The great question, according to his work, is, what is this cause? He says it is the strongest motive; in the definition of which he includes every thing that in any way contributes to the production of volition; in other words, the strongest motive is made to embrace every thing that acts as a cause of volition. This is the way in which he explains himself, as well as the manner in which he is understood by others. Thus, says the younger Edwards, “in his explanation of his idea of motive, he mentions all agreeable objects and views, all reasons and arguments, and all internal biases and tempers, which have a tendency to volition; i. e. every cause or occasion of volition,” p. 104. Every reader of President Edwards must be satisfied that this is a correct account of his definition of motive; and this being the case, the whole amounts to just this proposition, that volition is caused by that which causes it! He admits that it would be hard, if not impossible, to enumerate all those things and circumstances which aid in the production of volition; but still he is quite sure, that the whole of that which operates to produce a volition does actually produce it! Though he may have failed to show wherein consists the strength of motives; yet he contends that the strongest motive, or the cause of volition, is really and unquestionably the cause of volition! Such is the great doctrine of the Inquiry.
If this is what the Inquiry means to establish, surely it rests upon unassailable ground. Well may President Day assert, that “to say a weaker motive prevails against a stronger one is to say, that that which has the least influence has the greatest influence,” p. 66. Now who would deny this position of the learned president? Who would say, that that which has the greatest influence has not the greatest influence? Surely, this great doctrine is to the full as certain as the newly discovered axiom of professor Villant, that “a thing is equal to itself!”
President Day, following in the footsteps of Edwards, informs us that the will is determined by the strongest motive; but how shall we know what is the strongest motive? “The strength of a motive,” says he, “is not its prevailing, but the power by which it prevails. Yet we may very properly measure this power by the actual result!” Thus are we gravely informed that the will is determined by that which determines it.
Again. If we suppose there is a real strength in motives, that they exert a positive influence in the production of volitions, then we concede every thing to President Edwards. For, if motives are so many forces acting upon the will, to say that the strongest will prevail, is simply to say that it is the strongest. But if motives exert no positive influence, then when we say that one is stronger than another, we must be understood to use this expression in a metaphorical sense; we must refer to some property of motives which we figuratively call their strength, and of which we suppose one motive to possess a greater degree than another. If this be so, what is this common property of motives, which we call their strength? If they do not possess a real strength, if they do not exert an efficient influence; but are merely said, metaphorically speaking, to possess such power and to exert such influence; then what becomes of the self-evidence which President Edwards claims for his fundamental proposition motives exert a real force, of course the strongest must prevail; but if they only have something else about them, which we call their strength, it is not self-evident that the motive which possesses this something else in the highest degree must necessarily prevail. Hence, the great doctrine of President Edwards is either a proposition whose truth arises out of the very definition of the terms in which it is expressed, or it is utterly destitute of that axiomatical certainty which he claims for it. In other words, he has settled his great doctrine of the will by the mere force of a definition; or he has left its foundations quite unsettled.