GENETICS AND ETHICS 479 



they can say that it was all predetermined in 

 heredity and from the foundations of the 

 world. 



Whether all the phenomena of life and of 

 mind can be explained on the basis of a purely 

 mechanistic hypothesis or not, that hypothesis 

 must square with the facts and not the facts 

 with the hypothesis. It has always been true 

 of those who "sat apart and reasoned high 

 of fate, free will, foreknowledge absolute" that 

 they have "found no end in wandering mazes 

 lost." Whatever the way out of these mazes 

 may be, whether it. be found in the varied re- 

 sponses of an organism to the same stimulus, 

 to the introduction of memory, intelligence 

 and reason as internal stimuli, or to some form 

 of idealism which finds necessity not in nature 

 but in the spectator, and freedom not in the 

 spectator but in the agent, it is true for those 

 who do not "sit apart and reason high," but 

 who deal merely with evident phenomena, that 

 the way out of these mazes is not to be found 

 in denying the reality of inhibition, atten- 

 tion and control. Because we can find no 

 place in our philosophy and logic for self de~ 



