176 ANTIENT METAPHYSICS. Book II. 



CHAP. XIV. 



Three Proofs of the Immateriality of Mind in general — the firjl taken 

 from the Nature oj Motion — the Jecond from the Nature oj Body — 

 and the third Jrom the Nature o/Mind itjelf- — Jhe lajl a Demonftra* 

 tion ex abiurdo — the other tivo a priori. 



AS I underftand by ;«zW> that motive poiver which animates, not 

 organized bodies only, fuch as animals and vegetables, but un- 

 organized bodies, — which, in fhort, pervades the whole univerfe, fu- 

 ftains and keeps together the mighty frame, being the principle of co- 

 hefion in bodies as well as ofmotion^ I will firft givefome general proofs 

 of the immateriality of this principle, applying equally to all bodies, 

 and then [ will confider particularly the different bodies in this uni- 

 verfe, and offer fome particular arguments to prove, that the 77ioving 

 principle^ however different in the feveral bodies, mufl neceffarily be 

 immaterial. 



The firff general proof I fubmlt to the confi deration of the reader, 

 is built upon what I think I have already demonftrated, that what 

 moves is diftind: from what is moved ; and that, where there is motion^ 

 there muft neceffarily be two things, one that moves^ and another that 

 is moved. That there is thisdiilindion in idea at leall, and that it a<Stu- 

 ally obtains in all machines of human invention, cannot be denied. 

 But I think I have given a general demonftration, arifing from the na- 

 ture of motion, th;it it obtains univerfally, in all the works of nature as 

 well as of art ; and therefore, that nothing can move itfelf. 



This 



