i8 ANTIENT M FT APH YS I CS. Book I. 



Having thus begun at home, and eftablllhed that the motion of my 

 body .is produced by my mind, I proceed, by analogy, to account for 

 the motions of other bodies. And, in the Hrft place, 1 mud fuppofc 

 that the motions of other men's bodies, as they are perfedly of the 

 fame kind with the motions of my own body, are produced by a caufe 

 of the fame kind. And this analogy goes to the motions of all other 

 animals, and even of vegetables ; I mean thofe motions of vegetable3 

 by which thev grow and are nourilhed, produce leaves, flowers, and 

 fruits, and propagate their kind: For all motion, as I have {hown*, 

 is produced in one of three ways; either by the body moving itfelf; 

 by being moved by the impulfe of other bodies; or, laftly, by mind. 

 And as I have {hown, and, I think, demonftrated, that body can- 

 not move itfelf, and as it is impoffible to iuppofe, nor, indeed, has 

 it been fuppofed by any man, that the vegetable is moved by the 

 impulfe of other bodies, of which we neither know the exiftence, 

 nor how they are ihemfelves moved fo as to be able to move the 

 vegetable, I muft conclude that the vegetable is moved in the fame 

 manner as my body is, viz. by mind. 



But this analogy goes further, even to bodies unorganized, fuch 

 as earth, ftones, and minerals: For, as they do not move themfelves 

 any more than bodies organized, and as no account has been given, 

 or attempted to be given, of other bodies, which, being firft moved 

 themfelves, put unorganized bodies in motion, I muft conclude, 

 that they, as well as other bodies, are moved by mind ; and by that 

 mind, which I call the elemental m'lnd^ and which is fo univerfal in 

 nature (and, therefore, is called by Ariftotle by the name of nature-\') 

 that all bodies of every kind, organized or unorganized, animal or 

 vegetable, are moved by it. And thus the whole motion of the 

 univerfe is produced by mind, if not immediately at leaft ultimate- 

 ly: For though one body, no doubt, may be moved by the impulfe 



of 

 * Page 7. t See vol. I. p. 231. 



