15 6 '"The consequences of the -

duction of it, spontaneous motion would bealways as the intensity of the desires, norwould the aptitude of the body be consideredin producing the effect. This is still fartherevident in respiration , which is a motionpurely mechanical in usj for it is performed'necessarily, and without an act of the wiH,as well when asleep as awake. Yet it is abso partly subjected to the will; we can acct'lerate , retard , or entirely flop it for a little-And surely when it is thus accelerated, i{lconsequence of an act of the will, it is n aotherwise performed than when the willnot concerned in it; that is mechanicalsWhence, as was asserted, spontaneous moti°^doth not exclude , but suppose mechanical t# 0 'tion, and the spontaneity consiss only inset W l sor not setting the mechanism on work ; or 111an arbitrary command over the mechanise

XIX. Now this thing that begins moti° nwhere it was not, and flops it where it wa s *that effects a, change from rest to moth? 11 ’and.from motion to rest; and that arbitra-rily, can never be matter, which, as hatbeen shewn, necessarily resists all chang e 0

its state, either of rest or motion.

Thi 5

WOO

Id.