THE ARBITER OF ETHICS 261 



field is practically without limits, so vast and so numer- 

 ous are the problems to be solved. And it should dis- 

 tress no one to discover that there are other fields of 

 knowledge in which science is not concerned; on the 

 contrary, the fact that the range of science is limited 

 should encourage us to greater hopes, because our 

 freedom of action is still far greater than our powers 

 of accomplishment. After centuries of effort, the 

 ocean of the unknown lies before us unexplored. 



