INTRODUCTION xi 



meaning to the body social. The deeper currents of 

 mental life, so essential to wholesome social growth, 

 stagnate at their sources, or their burdens putrify on 

 their meandering way. For the carriers of truth are 

 fickle agents; their inconstant hearts are empty, or 

 flatulent, or too weak to drive their lessons home. Basic 

 terms are seldom cashed at par, for the living thought 

 of man is ever clothed in dead, or dying words. And 

 these regal words of other days, laden with precious 

 memories, devitalized by use, mutilated by dogmatism, 

 or outlawed by the vital progress of ideas, are widely 

 quoted at fictitious values. There is no standard verbal 

 money rightly to measure the products of mental labor. 

 Thus the world's ambassadors to humanity, inspired 

 though they be with the spirit of service, are powerless 

 to accomplish their purpose. They are as strangers in 

 their own land, as immigrants in a crowded immigrant 

 district, mentally isolated from one another, and from 

 their fellow men. Inestimable potentialities, pitifully 

 unserviceable and unservable. 



V. The Grand Strategy of Evolution 



As the mental attitude of an immigrant is not with- 

 out value to his fellows, I venture to express the re- 

 sults of my own experiences, chiefly in the world of 

 animal life. 



Let me say at the outset that I can discover no basic 

 difference, using the term in its physiological sense, 

 between the end or purpose inherent to all phases of 

 vital action, and the purpose inherent to all physical 

 or natural phenomena. In all cases, the purpose, or 



