DARWIN AND HIS REVIEWERS. 177 



world is coextensive with Providence, and hold as firm- 

 ly to the one as he does to the other, in spite of the 

 wholly similar and apparently insuperable difficulties 

 which the mind encounters whenever it endeavors to 

 develop the idea into a system, either in the material 

 and organic, or in the moral world. It is enough, in 

 the way of obviating objections, to show that the phil- 

 osophical difficulties of the one are the same, and only 

 the same, as of the other. 



