344 ANTIENT METAPHYSICS. Book V. 



Thefe being all the difierent ways in which we can conceive 

 Body to move Body, the queftion is, Whether Sir Ifaac's Firji La-vo 

 will apply to all thefe feveral kinds of that Motion ; and I fay, 

 that, as the law is now underflood by the Newtonians in the fenfe 

 above explained, of the Motion going on by itfelf in confequence 

 of an impulfe, it will apply only to Motion produced by an /^«/, or 

 Stroke, or by Pulfion, as I exprefs it, and not to Motion produced 

 by Preflure or Trufion, whether it be in the way of Protrufion, or 

 of Drawing, according to the diftindion above made. 



If this be fo, the Newtonians muft admit that their Law of Mo- 

 tion is not univerfal : For, in ihtfrji place, it does not apply, as I 

 have faid, to Motion by Mind ; neither does it apply to every kind 

 of Motion produced by Body, and particularly to that kind of Mo- 

 tion which I call Trufion, by which the Body does not go on by it- 

 felf, in confequence of any impulfe, but is carried on along with the 

 Moving Body. 



And here we may obferve the fimilarlty betwixt the Motion by 

 Mind, and the Motion by Body in the way of Trufion ; for both 

 Motions continue no longer than the Moving Power continues to 

 a£t : So that here we have a clear inftance, even in the cafe of Mo- 

 tion produced by Body, of the Motion ceafing in the fame way that 

 I fay Motion by Mind ceafes, — not by any flop or obftacle, but 

 merely by the Moving Power ceafing to a£l. For, to fay that Mind 

 flops the Motion of the Body it moves, is not fpeaking accurately or 

 phllofophlcally ; we ought only to fay, that the Mind ceafes to move, 

 and then the Body returns to its natural flate of inertnefs and inac- 

 tivity, except where the Body, as I have before obferved, is, by the 

 Elemental Mind overcoming the Animal Mind, carried on, as in the 

 cafe of a perfon falling or running down a fteep. And, in the fame 

 manner, when the Body is moved by the PrelTure or Trufion of ano- 

 ther 



