The propagation of motion from body to body, without any First mover, or immaterial cause of motion, has been proved impossible, proposition I.
The supposition of a perpetual motion in a circle is begging the question. For if A moves B, B moves C, and so on to Z, and then Z moves A; this is the same as to say that A moves A, by the intervention of B, C, D, … Z: that is, A moves itself, or can begin motion.206
It remains then, that all corporeal motions come originally from some mover incorporeal, which must be either that Supreme and self-existing spirit himself, who is God, or such as will put us into the way how to find that there is such a Being (turn back to proposition I).
If we consider ourselves, and the voluntary motions begun by us, we may there see the thing exemplified. We move our bodies, or some members of them, and by these move other things, as they again do others, and know these motions to spring from the operations of our minds; but then we know also, that we have not an independent power of creating motion. If we had, it could not be so limited as our locomotive faculties are, nor confined to small quantities and certain circumstances only: we should have had it from eternity, nor could we ever be deprived of it. So that we are necessitated to look up and acknowledge some Higher being, who is able not only to produce motion, but to impart a faculty of producing it.
And if the petty motions of us mortals afford arguments for the being of a God, much more may those greater motions we see in the world, and the phenomena attending them: I mean the motions of the planets and heavenly bodies. For these must be put into motion, either by one common mighty Mover, acting upon them immediately, or by causes and laws of His appointment, or by their respective movers, who, for reasons to which you can by this time be no stranger, must depend upon some Superior, that furnish them with the power of doing this. And granting it to be done either of these ways, we can be at no great distance from a demonstration of the existence of a Deity.
It may perhaps be said that though matter has not the power of moving itself, yet it has an attractive force by which it can move other parts of matter, so that all matter equally moves and is moved. But, allowing those things which are now usually ascribed to attraction, we shall still be necessitated to own some Superior being whose influence mixes itself with matter, and operates upon it, or at least who, some way or other, imparts this force. For attraction, according to the true sense of the word, supposes one body to act upon another at a distance, or where it is not; but nothing can be an agent, where it is not at all. Matter can act only by contact, impelling contiguous bodies, when it is put into motion by something else, or resisting those which strike against it, when it is at rest. And this it does as matter: i.e. by being impenetrable to other matter; but attraction is not of the nature or idea of matter. So that what is called “attraction,” is so called only because the same things happen as if the parts of matter did mutually attract; but in truth this can only be an effect of something which acts upon or by matter according to a certain law. The parts of matter seem not only to gravitate towards each other, but many of them to fly each other. Now these two contrary motions and seeming qualities cannot both proceed from matter quà matter; cannot both be of the nature of it: and therefore they must be owing to some external cause, or to some other being, which excites in them this as it were love and discord.207
Besides, as to the revolution of a planet about the sun, mere gravitation is not sufficient to produce that effect. It must be compounded with a motion of projection, to keep the planet from falling directly into the sun, and bring it about; and from what hand, I desire to know, comes this other motion (or direction)? Who impressed it?
What a vast field for contemplation is here opened! Such regions of matter about us, in which there is not the least particle that does not carry with it an argument of God’s existence; not the least stick or straw, or other trifle