486 HEREDITY AND ENVIRONMENT 



perienced persons can to a certain extent 

 choose their own environment and thus indi- 

 rectly control their responses and habits but 

 young children are almost if not quite as in- 

 capable of choosing their environment as of 

 choosing their heredity, and it becomes the 

 duty of society to see to it that the environ- 

 mental stimuli are such as to develop rational, 

 social and ethical habits rather than the 

 reverse. 



We need not think of the will as a deus ex 

 macliina, nor even as "a little deity encapsuled 

 in the brain," but rather as the sum of all those 

 psychical processes, such as memory and rea- 

 son, which regulate behavior. In this sense the 

 will is as free as the mind, and no freer. In- 

 deed the will is the mind acting as internal 

 stimulus, inhibition, regulation; in this sense 

 the existence and power of will is no more to 

 be doubted than the existence of those other 

 mental conditions which we call intellect or 

 memory. 



Just as intellect or memoiy may be trained 

 to accomplish results which would have been 

 impossible to the untrained mind, so will may 



