SECT. XLIV. Matter Cannot Think.
But let us suppose whatever you please, for I will not enter the lists with any sect of philosophers: here is an alternative which no philosopher can avoid. Either matter can become a thinking substance, without adding anything to it, or matter cannot think at all, and so what thinks in us is a substance distinct from matter, and which is united to it. If matter can acquire the faculty of thinking without adding anything to it, it must, at least, be owned that all matter does not think, and that even some matter that now thinks did not think fifty years ago; as, for instance, the matter of which the body of a young man is made up did not think ten years before he was born. It must then be concluded that matter can acquire the faculty of thinking by a certain configuration, ranging, and motion of its parts. Let us, for instance, suppose the matter of a stone, or of a heap of sand. It is agreed this part of matter has no manner of thought; and therefore to make it begin to think, all its parts must be configurated, ranged, and moved a certain way and to a certain degree. Now, who is it that knew how to find, with so much niceness, that proportion, order, and motion that way, and to such a degree, above and below which matter would never think? Who is it that has given all those just, exact, and precise modifications to a vile and shapeless matter, in order to form the body of a child, and to render it rational by degrees? If, on the contrary, it be affirmed that matter cannot become a thinking substance without adding something to it, and that another being must be united to it, I ask, what will that other thinking being be, whilst the matter, to which it is united, only moves? Therefore, here are two natures or substances very unlike and distinct. We know one by figures and local motions only; as we do the other by perceptions and reasonings. The one does not imply, or create the idea of the other, for their respective ideas have nothing in common.
SECT. XLV. Of the Union of the Soul and Body, of which God alone can be the Author.
But now, how comes it to pass that beings so unlike are so intimately united together in man? Whence comes it that certain motions of the body so suddenly and so infallibly raise certain thoughts in the soul? Whence comes it that the thoughts of the soul, so suddenly and so infallibly, occasion certain motions in the body? Whence proceeds so regular a society, for seventy or fourscore years, without any interruption? How comes it to pass that this union of two beings, and two operations, so very different, make up so exact a compound, that many are tempted to believe it to be a simple and indivisible whole? What hand had the skill to unite and tie together these two extremes and opposites? It is certain they did not unite themselves by mutual consent, for matter having of itself neither thought nor will, to make terms and conditions, it could not enter into an agreement with the mind. On the other hand, the mind does not remember that it ever made an agreement with matter; nor could it be subjected to such an agreement, if it had quite forgot it. If the mind had freely, and of its own accord, resolved to submit to the impressions of matter, it would not, however, subject itself to them but when it should remember such a resolution, which, besides, it might alter at pleasure. Nevertheless, it is certain that in spite of itself it is dependent on the body, and that it cannot free itself from its dependence, unless it destroy the organs of the body by a violent death. Besides, although the mind had voluntarily subjected itself to matter, it would not follow that matter were reciprocally subjected to the mind. The mind would indeed have certain thoughts when the body should have certain motions, but the body would not be determined to have, in its turn, certain motions, as soon as the mind should have certain thoughts. Now it is most certain that this dependence is reciprocal. Nothing is more absolute than the command of the mind over the body. The mind wills, and, instantly, all the members of the body are in motion, as if they were acted by the most powerful machines. On the other hand, nothing is more manifest than the power and influence of the body over the mind. The body is in motion, and, instantly the mind is forced to think either with pleasure or pain, upon certain objects. Now, what hand equally powerful over these two divers and distinct natures has been able to bring them both under the same yoke, and hold them captive in so exact and inviolable a society? Will any man say it was chance? If he does, will he be able either to understand what he means, or to make it understood by others? Has chance, by a concourse of atoms, hooked together the parts of the body with the mind? If the mind can be hooked with some parts of the body, it must have parts itself, and consequently be a perfect body, in which case, we relapse into the first answer, which I have already confuted. If, on the contrary, the mind has no parts, nothing can hook it with those of the body, nor has chance wherewithal to tie them together.
In short, my alternative ever returns, and is peremptory and decisive. If the mind and body are a whole made up of matter only, how comes it to pass that this matter, which yesterday did not, has this day begun to think? Who is it that has bestowed upon it what it had not, and which is without comparison more noble than thoughtless matter? What bestows thought upon it, has it not itself, and how can it give what it has not? Let us even suppose that thought should result from a certain configuration, ranging, and degree of motion a certain way, of all the parts of matter: what artificer has had the skill to find out all those just, nice, and exact combinations, in order to make a thinking machine? If, on the contrary, the mind and body are two distinct natures, what power superior to those two natures has been able to unite and tie together without the mind’s assent, or so much as its knowing which way that union was made? Who is it that with such absolute and supreme command over-rules both minds and bodies, and keeps them in society and correspondence, and under a sort of incomprehensible policy?
SECT. XLVI. The Soul has an Absolute Command over the Body.
Be pleased to observe that the command of my mind over my body is supreme and absolute in its bounded extent, since my single will, without any effort or preparation, causes all the members of my body to move on a sudden and immediately, according to the rules of mechanics. As the Scripture gives us the character of God, who said after the creation of the universe, “Let there be light, and there was light”—in like manner, the inward word of my soul alone, without any effort or preparation, makes what it says. I say, for instance, within myself, through that inward, simple, and momentaneous word, “Let my body move, and it moves.” At the command of that simple and intimate will, all the parts of my body are at work. Immediately all nerves are distended, all the springs hasten to concur together, and the whole machine obeys, just as if every one of the most secret of those organs heard a supreme and omnipotent voice. This is certainly the most simple and most effectual power that can be conceived. All the other beings within our knowledge afford not the like instance of it, and this is precisely what men that are sensible and persuaded of a Deity ascribe to it in all the universe.
Shall I ascribe it to my feeble mind, or rather to the power it has over my body, which is so vastly different from it? Shall I believe that my will has that supreme command of its own nature, though in itself so weak and imperfect? But how comes it to pass that, among so many bodies, it has that power over no more than one? For no other body moves according to its desires. Now, who is it that gave over one body the power it had over no other? Will any man be again so bold as to ascribe this to chance?
SECT. XLVII. The Power of the Soul over the Body is not only Supreme or Absolute, but Blind at the same time.
But that power, which is so supreme and absolute, is blind at the same time. The most simple and ignorant peasant knows how to move his body as well as a philosopher the most skilled in anatomy. The mind of a peasant commands his nerves, muscles, and tendons, which he knows not, and which he never heard of. He finds them without knowing how to distinguish them, or knowing where they lie; he calls precisely upon such as he has occasion for, nor does he mistake one for the other. If a rope-dancer, for instance, does but will, the spirits instantly run with impetuousness, sometimes to certain nerves, sometimes to others—all which distend or slacken in due time. Ask him which of them he set a-going, and which way he begun to move them? He will not so much as understand what you mean. He is an absolute stranger to what he has done in all the inward springs of his machine. The lute-player, who is perfectly well acquainted with all the strings of his instrument, who sees them with his eyes, and touches them one after another with his fingers, yet mistakes them sometimes. But the soul that governs the machine of man’s body moves all its springs in time, without seeing or discerning them, without being acquainted with their figure, situation, or strength, and yet it never mistakes. What prodigy is here! My mind commands what it knows not, and cannot see; what neither has, nor is capable of any knowledge. And yet it is infallibly obeyed. How much blindness and how much power at once is here! The blindness is man’s; but the power, whose is it? To whom shall we ascribe it, unless it be to Him who sees what man does not see, and performs in him what passes his understanding? It is to no purpose my mind is willing to move the bodies that surround it, and which it knows very distinctly; for none of them stirs, and it has not power to move the least atom by its will. There is but one single body, which some superior Power must have made its property. With respect to this body, my mind is but willing, and all the springs of that machine, which are unknown to it, move in time and in concert to obey him. St. Augustin, who made these reflections, has expressed them excellently well. “The inward parts of our bodies,” says he, “cannot be living but by our souls; but our souls animate them far more easily than they can know them. . . . The soul knows not the body which is subject to it. . . . It does not know why it does not move the nerves but when it pleases; and why, on the contrary, the pulsation of veins goes on without interruption, whether the mind will or no. It knows not which is the first part of the body it moves immediately, in order thereby to move all the rest. . . . It does not know why it feels in spite of itself, and moves the members only when it pleases. It is the mind does these things in the body. But how comes it to pass it neither knows what she does, nor in what manner it performs it? Those who learn, anatomy,” continues that father, “are taught by others what passes within, and is performed by themselves. Why,” says he, “do I know, without being taught, that there is in the sky, at a prodigious distance from me, a sun and stars; and why have I occasion for a master to learn where motion begins? . . . When I move my finger, I know not how what I perform within myself is performed. We are too far above, and cannot comprehend ourselves.”