48 ANTIENT METAPHYSICS. Book I. 



out confclournefs, we fliould not have known at all that Mind moves 

 Body. 



The confequence of Mind moving Body in this way, is not only 

 that the Motion ceafes when the energy ceafes, but that it moves 

 Body in all directions with the fame facility, not only in a ftraight 

 line, but in a curve, of which the dircdion is continually changing: 

 And this, as fimply and uniformly, as in a ftraight line ; for, as the 

 motion is, by the incefTant exertion of the moving power, repeated 

 every inftant of the motion, it may change its diredion every mo- 

 ment, without any other motive force being applied to the Body. On 

 the other hand, as Body moves Body by impulfe, which motion conti- 

 nues fome time after the impulfe, and as it is a law of Nature, that a 

 Body fo moved muft go on in a ftraight line, it is evident that it 

 cannot be defleded from the ftraight line, fo as to be moved in a 

 curve, without fome other force applied to it. The curvilineal mo- 

 tion, therefore, produced in this manner, muft neceflarily be a com- 

 bined motion, not fimple and uniform. 



However extraordinary, therefore, this kind of motion by Mind 

 may appear to thofe who have not attended to the operations of 

 Mind, but only to thofe of Body, I fay we neither have, nor can have 

 any other idea of it, becaufe our own motion, from which alone we 

 derive the idea of the motion of Mind, is of that kind. 



Of what ufc tills theory is, in explaining the motions of the cc- 

 ieftial Bodies, may appear from what I have already faid upon this 

 fubjccl in the Appendix to the Firft Volume, and will, I hope, appear 

 ftill more evidently fiom what I Ihall further fay. 



In the mean time, it is to be obfcrvcd, that it is not true what is 

 coimnonly faid, that we know nothing of the way in which Mind 



moves 



