DISPLACEMENT 



PROPOSITION XIV. 



The primary spheres constituting void matter can 

 convey force from one organized body to another 

 organized body only by change of position. 



Because the force, light, comes to us from the 

 sun, and is made manifest to us on earth, there- 

 fore, we know that there must have been a change 

 in matter somewhere. (Axiom I.) But primary 

 spheres are not capable of change. (Def. 6.) Yet 

 the force, light, to come to us from the sun must 

 change any intervening matter. (Prop. XII.) 



Therefore, the change must be in the position of 

 the primary spheres; or at least that portion of 

 them which are between the first one nearest the 

 sun and the last one nearest to us on earth. 



One body cannot occupy the space occupied 

 by another body. This will apply whether a body is 

 indivisible or not; and it is evident that through 

 this law only can a number of bodies, which are 

 unchangeable and unorganized, be brought into 

 the economy of nature. 



Therefore, the primary spheres of void matter 

 can convey force between organized bodies only 

 through change of position. 



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