90 A N T I E N T METAPHYSICS. Book II. 



Greek by the word ^v^o^-f, which we may tranflate into Engllfh,. 



anger. 



But the animal oeconomy would not be yet compleat, If nature had 

 not beftowed upon us another thing, more wonderful, I think, in the eyes 

 of the philofopher, than any thing I have yet mentioned. I have faid, 

 that the impulfe, which excites an animal to fupplyhis own wants, and 

 to propagate his kind, is excited by the objects prefented by the fenfe :. 

 But, fuppofe there is no objecft within the reach of fenfe proper to ex- 

 cite the animal to either, yet it may be neceifary that the animal 

 fliould feek for both. How then is this want to be fupplied ? and how 

 is the animal to be prompted to feek for an object that the fenfe does 

 not prefent to him ? The anfwer is, That nature, by a wonderful con- 

 trivance, prefents to the mind of the animal, and m.akes, as it v;ere, a 

 pidure within him of the forms of thofe objects of the appetite af the 

 animal, by which he is prompted to feek them as much as if they 

 were really before him. This magic lanthorn of the mind, (for fo £ 

 think it may be called), is, in Greek, expreffed by the word <p^.vT«. 

 (r<«, in Engliih imag'inatiofii ox fancy ^ by which the images of things 

 pi-efentcd to the mind by the fenfes are preferved ; fo that the percep- 

 tions of fenfcj which otherways would be fleeting and tranfitory, ac- 

 quire, in this way, fome kind of duration and permanency; and, by 

 this admirable contrivance, the mind is moved from within as (Irong- 

 ]y, and fometimes more ftrongly, than by objeds from without. 



By thefe two irapulfcs, proceeding either from real objects percei- 

 ved by the fenfe, or from the pictures of them in the imagination, the 

 animal is prompted to a^, that is, to move his body, which is the in- 

 itrument th;it nature has given him for fupplying his wants : And it 

 remains now only to be inquired, By what kind of mcchanifm the f?iind 

 moves the body, and employs it in gratifying its appetites and fupplying 



its wants ? 



That 



t See Philoponus in his introduction to his commentary on the books de A^ima, 



