146 LIFE ON THE EARTH. 



of existence is one part of the great scheme we thus 

 contemplate in outline. Our real knowledge does not 

 go beyond; nor can we reach, even by the hardiest 

 human conjecture, to that Supreme Purpose, past, pre- 

 sent, and prospective, which lies at the bottom of the 

 whole, and to which man is submitted in common with 

 all other forms, from the highest to the lowest, of 

 animal life. 



