52 EVOLUTION AND MAN S PLACE IN NATURE 



is in some respect even more essential for develop 

 ment of this young human life. Lack of the one may 

 bring death ; lack of the other will bring stagnation 

 of life, even while life endures, presenting a life 

 checked and cramped in development. Fit nourish 

 ment, and healthy action of both organism and 

 intellect, are the conditions for development of the 

 human being. There is great contrast between these 

 two sets of conditions, pointing to contrast in func 

 tions; but however contrasted, they are invariably 

 and intimately related in the normal life of man. 

 Each set waits on the other, and attends on the other, 

 in order that activity may widen out in accordance 

 with the laws of development. The one set cannot 

 be sacrificed to the advantage of the other. A life 

 physical and a life intellectual, acting in unison, to 

 gether supply the conditions of a healthy human life. 

 There is manifest fitness to the powers and possi 

 bilities of this type of life, when there is adequate 

 provision for physical exercise and rest, and at the 

 same time, scope for increasing intellectual activity. 

 This is the rule of human existence, important for 

 old and young alike. Throughout early life there is 

 a great contrast between poor food, and poor educa 

 tion ; in after life, there appears a large contrast in 

 comparative results. 



Until we have set the two sides of our nature in 

 contrast, we cannot fully appreciate the complexity of 

 human functions. The correlation and coherence are 

 unmistakable ; the antithesis must be seen and under 

 stood, if we are to appreciate the conditions of our 

 life. Physique has not its equivalent in intellectual 

 force, any more than intellect has its equivalent in 



