1 6 BRAINS OF RATS AND MEN 



to make it so. And, in fact, all experience answers 

 plainly and simply that our thinking and our doing 

 are woven together in a single life, not a double life, 

 and they do stand in cause-and-effect sequence. 



Dewey somewhere comments on the impossible 

 attempt to live in two unrelated worlds at once. 

 That way madness lies. Just how consciousness 

 knits in with my conduct, that is, what is the mecha- 

 nism involved, I do not know. But only eyes blinded 

 by prejudice can fail to recognize that it does so 

 efficiently. The question before us is. Does it do so 

 naturally or supernaturally, mystically? Let us fol- 

 low the natural road as far as we can before turning 

 aside into mysticism. And above all, let us inquire 

 more deeply before we throw out of our scheme of 

 living those higher thoughts, appreciations, aspira- 

 tions, and idealizations that alone make life on the 

 human plane worth while. 



The biologist knows no disembodied functions. 

 It is natural for him to say, 'Tt is the function of 

 muscles to contract and of the brain to think." 

 And why not? The only kinds of minds of which we 

 have first-hand experience are human minds. And 

 so far as accurately controlled observations have thus 

 far gone, the mental processes are not structural 

 entities, the mind is not something static that can be 

 detached from the body. The mind fatigues like 

 other bodily functions, it is disordered by intoxica- 

 tions and by bodily derangements, and its activities 



