230 The soul asmplesubflance,

hilation, which is not a change properlyspeaking. If the matter of our bodies were

such

included in nativity ; especially since he makes mobilitycommon to both matter and spirit. Which, with sub-jnisiion, I think is very wrong, and tends to confoundthe natures of the two substances he would distinguisti-We fay a thing is moveable, which can be moved by aforce applied ab extra : thus a table or a chair is move-able. And consequently we call a thing immoveable whichno force applied, or that we can apply, is able to move:thus a house or a mountain is said to be immoveable-Now a substance that no way impedes motion, but ef-fects it, can with no propriety, I think, have the capa-city of mobility ascribed to it, as it is ascribed to body,a substance which resists motion,and no way effects it,and therefore wants an external mover. To make spi-rit material, and so at once both to cause and hinder mo-tion, is a plain contradiction. Spirit, it is true, stopsmotion ; but it is by the fame living efficacy , by whichit begins it; not by a deadness and rejiflance in itself tobe moved. Besides, a spirit when it moves, hath no mo-ment, as body hath, proceeding from its vis inertia. Itcannot be said to resist being brought from motion to restor from rest to motion; since it effects these changes. IIit moved circularly, it could have no centrifugal force.When a man walks, his spirit moves his body; but isnot moved by it. If both were moved, there would beno mover. Nay, even in the journey betwixt Londonand Oxford , where the man’s spirit is not the mover,but the horses move the coach, his body and all, his spiritdoth not impede the motion, or make the draught heavier ;

Of