OUTLINES OF NATURAL PHILOSOPHY. 



II. That the planets all move in the same di- 

 rection, as both primary and secondary 

 do from west to east : 



III. That the planes of their orbits are but 

 little inclined to one another. 



But for these three conditions, terms of the kind 

 mentioned above would come into the expres- 

 sion of the inequalities, which might therefore 

 increase without limit. 



These three conditions do not necessarily arise 

 out of the nature of motion or of gravitation, 

 or from the action of any physical cause with 

 which we are acquainted. Neither can they 

 be considered as arising from chance ; for the 

 probability is almost infinite to one, that, with- 

 out a cause particularly directed to that object, 

 such a conformity could not have arisen in 

 the motions of thirty-one different bodies scat- 

 tered over such a vast extent. 



The only explanation, therefore, which remains, 

 is, that all this is the work of intelligence and de- 

 sign, directing the original constitution of the 

 system, and impressing such motions on the parts 

 as were calculated to give stability to the whole. 



SECT. 



