THE BAFFLING PROBLEM 



whether as the result of their peculiar and very 

 complex compounding or as the cause of the com- 

 pounding — how are we ever to know? Is it not just 

 as scientific to postulate a new principle, the prin- 

 ciple of vitality, as to postulate a new process, or a 

 new behavior of an old principle? In either case, 

 we are in the world of the un verifiable; we take a 

 step in the dark. Most of us, I fancy, will sympa- 

 thize with George Eliot, who says in one of her 

 letters: "To me the Development Theory, and all 

 other explanations of processes by which things 

 came to be, produce a feeble impression compared 

 with the mystery that lies under the processes." 



