GENESIS OF MAN, MORALLY 



illustrated above, that this prolongation of in- 

 fancy was manifestly the circumstance which 

 knit those permanent relationships, giving rise 

 to reciprocal necessities of behaviour, which dis- 

 tinguish the rudest imaginable family group of 

 men from the highest imaginable association of 

 gregarious non-human primates. 



In this line of inquiry, which, so far as I 

 know, has never yet been noticed by any of the 

 able writers who have dealt with the origin of 

 the human race, it seems to me that we have 

 the clew to the solution of the entire problem. 

 In this new suggestion as to the causes and 

 the effects of the prolonged infancy of man, I 

 believe we have a suggestion as fruitful as the 

 one which we owe to Mr. Wallace. And the 

 most beautiful and striking feature in this treat- 

 ment of the problem is the way in which all 

 the suggestions hitherto made agree in helping 

 us to the solution. That same increase in re- 

 presentativeness, which is at the bottom of in- 

 tellectual progressiveness, is also at the bottom 

 of sociality, since it necessitates that prolonga- 

 tion of infancy to which the genesis of sociality, 

 as distinguished from mere gregariousness, must 

 look for its explanation. In this phenomenon 

 of the prolonging of the period of infancy we 

 find the bond of connection between the prob- 

 lems which occupy such thinkers as Mr. Wal- 

 lace and those which occupy such thinkers as 



VOL. IV I O I 



