ORIENTATION OF MENTAL IMAGERY 287 



sion in bodily acts and bodily structures, or in conduct, 

 art, and social procedure. That, needless to say, can- 

 not now be done. However, some tentative generaliza- 

 tions, indicative of the cooperative relations between 

 these different systems, may be permissible. Broadly 

 stated, they seem to be somewhat as follows : ( i ) Man's 

 mental imagery, reflecting directly or indirectly nature- 

 action, tends to become unbuilt and organized into logi- 

 cally coherent sequences by the same self-saving and 

 creative methods that have produced nature's evolution- 

 ary streams of form and structure. (2) Hence, no 

 matter what their racial sources may be, or their instru- 

 mentalities, science, religion, and philosophy are driven 

 by the same logical compulsion toward the same ele- 

 mental conclusions. (3) Hence these psychic-action 

 systems, when outwardly expressed in material con- 

 structions, in organic action, conduct, art, or cultural 

 constructions, must be expressed in similar architec- 

 tural forms, and in similar modes of social procedure. 

 In this indirect way, man's mental imagery, bodily 

 actions, and social procedures are individually unbuilt 

 by mutual adaptation, and in functional unison, as 

 members of a common growth system, and in accord- 

 ance with the same saving and constructive methods 

 universally used in nature architecture. 



II. The Egoism and Altruism of Mental Life, 

 Learning and Teaching 



In the evolution of these three great currents of 

 constructive thought, we see the same basic imagery, 

 the same attempts to discover corresponding realities in 

 nature, and the same attempts to test, or interpret, trie' 



