GRAND STRATEGY OF EVOLUTION 



The register of the other is in supplementary 

 structural details, chiefly, no doubt, in the nervous sys- 

 tem. These structural details are not so easily meas- 

 urable; many of them are wholly inaccessible. They 

 may be manifest only in supplementary reflex actions, 

 in instincts, or in the more immediately purposeful acts 

 called intelligent actions. 



In all these cases, the jightly moulded organic 

 structures and the Tightness of their responses to the 

 outer world are the product of what we call experience. 



Cultural Registers. But to go beyond mere in- 

 stinct and animal intelligence, and rightly to respond, 

 in a comprehensive way, to the less insistent warnings, 

 and to the less frequent invitations of the outer world, 

 demands something more than the fleeting memory, 

 and the limited experience of the individual organism. 



It demands some means of gaining an approximate 

 equivalent of personal experience though communica- 

 tion with other individuals. These equivalents of ex- 

 perience must then themselves be recorded, or sym- 

 bolized in some enduring architectural form; averaged 

 and expressed in what we call natural laws, or customs, 

 and made, so far as possible, immediately available for 

 the usage of every individual. 



But no one individual, or one generation, can do 

 that. That is a social function of mankind ; one which 

 demands for its accomplishment the cooperation of 

 countless individuals, for many successive generations, 

 and the usage of more enduring and more powerful 

 physical agencies than naked protoplasm. And so far 

 as that is accomplished, animal life passes over into 

 the more distinctive phases of human life and social 



