288 APPENDIX. Chap. I. 



Of all the Motions in this univerfe that are vifible to us, the 

 greateft and nobleft are thofe of the Heavenly Bodies : And, there- 

 fore, my philofophy of Motion would have been ridiculouily im- 

 perfea, if I had not inquired into the principle of their Motion. 

 This principle, according to the philofophy of Plato and Ajiftotle, is 

 Mind, and Mind Intelligent ; and the fame feems to be the philofo- 

 phy of our Sacred Books, where we read of an Angel in the Sun *; 

 but, according to a later philofophy, no older, as I have fhown, than 

 Sir Ifaac Newton t, the Motion of thofe Bodies is carried on without 

 Mind bv a zus iuJJla, or poiver inherent in the Bodies thenifelves. 

 This, fay thofe philofophers, is the power by which the planet is 

 carried on in its progreffive Motion ; but it is by another power that 

 the Body is direded in its progrefTion, and carried out of the ftraight 

 line into the elliptic. The firR of-thefe powers is called the Projeclile 

 Force, by which the planet is impelled in a ftraight line : The other is 

 called the Centripetal Force, by which the ftraight line is bent into an 

 ellipfis : And I think I have fliown very evidently, that, when Sir 

 Ifaac wrote his Principia, he fuppofed that both Motions were pro- 

 duced by bodily impulfe, as well as the Motion of the planet upon 

 its axis t ; fo that, according to Sir Ifaac's notions at that time, our 

 folar fyftem was altogether a machine going on of itfelf, without the 

 agency of Mind, fupreme or fubordinate § ; by which I would not 

 be underftood to think that Sir Ifaac ever, at any time, believed that 

 the ccleftial Bodies were not created by the Deity, and the machine 

 contrived and fet in Motion by him, though, at the fame time, I 

 think, I have ftiown that it was not a machine worthy of Almighty 



wifdom 



* Revelation, Chap. xix. verfe 17. 

 f Page 14. of this Vohime. 

 .j; Vol. ii. p. 320. 



§ See the definition of a Machine, and the difference fuewn betwixt a Machine and 

 the Moving Power, Vol. i. p. 190. and 50J. 



