Grounds of Natural Philosophy

Matter is that we name Body; which Matter cannot be less, or more, than Body: Yet some Learned Persons are of opinion, That there are Substances that are not Material Bodies. But how they can prove any sort of Substance to be no Body, I cannot tell: neither can any of Nature's Parts express it, because a Corporeal Part cannot have an Incorporeal Perception. But as for Matter, there may be degrees, as, more pure, or less pure; but there cannot be any Substances in Nature, that are between Body, and no Body: Also, Matter cannot be figureless, neither can Matter be without Parts. Likewise, there cannot be Matter without Place, nor Place without Matter; so that Matter, Figure, or Place, is but one thing: for, it is as impossible for One Body to have Two Places, as for One Place to have Two Bodies; neither can there be Place, without Body. Though Matter might be without Motion, yet Motion cannot be without Matter; for it is impossible (in my opinion) that there should be an Immaterial Motion in Nature: and if Motion is corporeal, then Matter, Figure, Place, and Motion, is but one thing, viz. a corporeal figurative Motion. As for a First Motion, I cannot conceive how it can be, or what that First Motion should be: for, an Immaterial cannot have a Material Motion; or, so strong a Motion, as to set all the Material Parts in Nature, or this World, a-moving; but (in my opinion) every particular part moves by its own Motion: If so, then all the Actions in Nature are self-corporeal, figurative Motions. But this is to be noted, That as there is but one Matter, so there is but one Motion; and as there are several Parts of Matter, so there are several Changes of Motion: for, as Matter, of what degree soever it is, or can be, is but Matter; so Motion, although it make Infinite Changes, can be but Motion.