SOURCES AND ENDS OF HUMAN EFFORT 345 



real causative factor in determining which course of 

 action will actually be chosen. There is no uncaused 

 action in either case, no mystic "non-physical forces." 

 And we really are in a position to know more about 

 the causative factors in the second case than in the 

 first. Our present neurologic knowledge is inadequate 

 to present a complete objective statement of the 

 causative factors in both reflex and deliberative pur- 

 pose, but in the second case our direct introspective 

 experience can fill some of the gaps. The ideas which 

 have influenced the purpose can be called back and 

 re-evaluated;, if we so desire. 



It is a travesty of scientific method to leave out of 

 consideration in a total view of human behavior just 

 those characteristics which diflPerentiate man from 

 brutes and upon which the further progress of civiliza- 

 tion must depend because we do not like to use the 

 only satisfactory data now available for the study of 

 these characteristics. 



This argument is shot through with theoretic in- 

 terpretations of scraps of factual data, some objec- 

 tive, some subjective. I have not hesitated to pass 

 freely from one to the other of these fields in my argu- 

 ment because I am actually doing so in the course of 

 the routine of my daily living. Poubtless I shall be 

 accused of leading a double life. The charge is true. 

 The question is. Does this duplicity rest on a natural 

 or a mythological basis? 



Dewey refers to the impossible attempt to live in 



