Chap. IV. ANTIENT METAPHYSICS. 3$ 



the impulfe ; which bodies cannot be moved by the impulfe after it 

 has cealed, but by mind, as I have fhown elfewhere *. This mo- 

 tion is univerfal in this material world, and belongs to all bodies 

 unorganized as well as organized. Of the mind which produces 

 this motion, and which Ariftotle calls •^y;^^;? r/$, by which he means 

 a kind of mind, diJlinB from the other minds in nature^ fuch as the 

 animal and vegetable, I have fpoken already f : And I will only 

 add here, that, as it belongs to every body and makes a part of it, 

 Vi-gil's defcription of that univerfal fpirit, that goes through all 

 nature, will very well apply to it. 



Principio caelum ac terras, campofque liquentes, 

 Lucentemque globum Lunae, Titaniaque altra 

 Spiritus intus alit, totjir.que infufri per artus 

 Mens ag'tat molem, et magno le corpore mifcet. 



^NEID. VI. V. 224. 



Befules this univerfal moving mind, there are other minds which 

 only move particular bodies, fuch as that wUicii moves the iron and 

 the loadftone towards one another J, and that which produces eledive 

 attradlion and repuliion in chemical bodies, of which I have fpoken 

 ellewhere. Th,=: fecond kind of moving mind is of a higher kind, 

 being what is called the Vegetable Mind, and of which the mo- 

 tions are more various than thofe of the fir't mind; for, by the oper- 

 ation of this mind, the vegetable is nouriiiied, grows, and propao-ates 

 its kind. The third kind of mind is the Animal, more various ftill;, 



E 2 for 



* Page 21. -J- Page 20. 



X How Sir Ifaac would have accounted for this motion I tlo not know, as he 

 has no where mentioned it. But as he does not appear to have had fo much as 

 the idea of boJy being moved by mind, he muft have fuppofed that it was pro- 

 duced by a VIS inftta, or power efTential to matter, not by mind, as Thales, the 

 firft philofopher in Greece, faid it was moved. Ti)is opinion of Thales muft ap- 

 pear a little extraoruinary, when we confider that the firft philofophers of Greece 

 were To far materialifts, that they m:i-.ntained the world to be made of different kinds 

 of bodies, (fee p. 24.-25.) But it feems that Thales had no idea of body rjov- 

 ing itfelf, any more than Sir Ifaac had the idea of its being moved by naind. 



