586 On "Natural and Mcr-al Philosophjj. 



the furniture and inhabitants of these world*^ 

 are unknown to us, and ot them we can form 

 no judgment, yet inasmuch as regards the orbs 

 themselves, as productions of the same creating 

 power, whatever this power be, we have 

 found reason to infer the same conclusion, <\^ 

 in the various species which constitute the 

 furniture of our globe. The planets of each 

 solar system are subject to one and the same 

 law, they subserve to one and the same end; the 

 means to this end are simple, but extensive and 

 grand in their operation ; they have, in fine, 

 -common properties, one and the same nature, 

 and if we may use_ the tprni, one and the same 

 constitution. 



Here, then, in the vast survey of ihc whole 

 universe, so far as it can be submitted to our 

 * observation and judgment, but still excepting 

 man, we find a similarity of plan, in providing 

 every single species of being with inherent 

 tendencies or qualities, adapted to the part 

 which they are intended to sustain, to the pur- 

 pose which they are intended to subserve. Our 

 observation of the phenomena and history of 

 each disposes us to arrange them under 

 genera and species, accordingly as individuals 

 discover common properties, and a constant 

 tendency to a common end. Whatever pro- 

 perties in each are not secondary, and can- 



