160 Heredity and Social Progress 



the sense of creating the changes on which 

 life depends. Men are usually much below 

 the limit of their possibilities, and in reaching 

 this limit they stir up powers and make parts 

 active that on ordinary occasions do not act, 

 or at least act rather ineffectively. Elation is 

 the pleasure of these revived activities. It is 

 always combined with increased power of vis- 

 ualization in which a complement is pictured ; 

 the idea of the absent member arouses the 

 stimuli and causes the bodily effects which the 

 presence of the absent member would have 

 aroused. Associated ideas stand in the place 

 of concrete stimuli and affect what they would 

 have affected. 



Let us put this concept into a concrete form 

 by thinking of the outer and inner body in 

 harmonious relations, so that there is a part in 

 the one correlated to every part in the other. 

 Now cut away the related part in one body, 

 and the corresponding part in the other body 

 becomes dormant. Visualization excites the 

 thought which this absent part would have 

 naturally created, and this thought is the 

 stimulus that arouses the corresponding part 



