Preface vii 



forever beyond human understanding, or were 

 they simply results of discoverable processes 

 of nature? 



Intelligence is a manifestation of work per- 

 formed in the brain. Work comes from 

 energy, and if the energy in the brain is a 

 special form of the energy we know in physi- 

 cal science, it must be subject to the same 

 laws as other energy. The wide differences 

 in the degree of intelligence exhibited by 

 different men indicate correspondingly wide 

 differences in the energy stored in their 

 brains. 



Energy is stored in a brain either by the 

 fiat of a Creator or by some natural means. 

 If it is stored by natural means, then that 

 natural means must be work performed, and 

 the amount of work performed must be 

 roughly proportional to the amount of energy 

 stored. As the place of storage is the brain, 

 the work of storing energy must be per- 

 formed in the brain or in some organ directly 

 associated with the brain. As no such as- 

 sociated organ is known, and as we know that 



