256 GRAND STRATEGY OF EVOLUTION 



Even with mutual aid and dawning intelligence, 

 man could not greatly increase his native power, or 

 raise his social organization much above that of ani- 

 mal life, until his hand, eye, ear, vocal organs, and 

 intelligence were brought into better organic coopera- 

 tion, and their potential constructive power made a 

 reality. These great constructive functions, visual, 

 manual, linguistic, auditory, and mental, must march 

 abreast on approximately the same front; neither one, 

 without inviting disaster, can greatly surpass, or greatly 

 fall behind, the other; for they must all act together, 

 and act cooperatively, to act constructively. Their 

 constructive power is in their unity of action and pur- 

 pose, and the progress of man, as an individual and as 

 a social animal, was, and still is, dependent on the 

 equitable development of each function. 



What we may call the preliminary period of man's 

 social evolution was devoted largely to the improve- 

 ment and unification of these organic instruments. For 

 it was only after that was in some measure achieved 

 that his hand, guided by his senses and by his intelli- 

 gence, could put material things to rights, and his ar- 

 ticulated words expressing inward emotions in the ar- 

 chitecture of outwardly propagated sounds could join 

 anarchistic wills in one, and direct the conduct of 

 widely separated human bodies into cooperative social 

 action. 



III. The Merging of Man's Sense of Self with His 

 Physical Instruments and Material Properties 



Meantime man was gradually learning that the ma- 

 terial things in nature have a constructive power of 



