3 i4 SCIENCE PROGRESS 



but sentiments and passions in their elemental form, such as 

 love and hatred, pride and contempt, suspicion, vengeance, 

 grief, and despair, displayed by attitude, gesture, and facial 

 expression, accompanied by the utterance of inarticulate vocal 

 sounds, by crying and laughing, and signs of pain and pleasure. 

 Such expressions of the feelings constitute a universal language 

 understood b}' all human beings, because common to all human 

 beings. 



At the proper season, an attraction of the two sexes neces- 

 sary for the preservation of the species would occur, for this 

 sexual attraction which we term love possesses a universal 

 language. In the normal conditions of life it is both a physio- 

 logical and psychological process ; it is the fountain head of the 

 emotions and passions, stronger even than the fear of death. 

 Love, though mute, speaks more eloquently by signs than any 

 spoken language. 



Next, the maternal instinct. What is stronger and appeals 

 more forcibly to our highest ideals than the tender emotion of 

 the mother for her child and the devoted sacrifices she will 

 make for its preservation? Yet do we not find this common 

 to ,all the higher animals? Indeed, we can see that the 

 moral sense, consisting in the highest altruistic feelings and 

 sentiments, has its roots in these two physiological instincts ; 

 for when pure and undefiled there is nothing more noble 

 and ennobling than love and parentage. We must therefore 

 regard the sentiments as having an evolutional biological basis 

 founded on the preservation of the individual and the species. 



The inborn raw material of character is a complex dependent 

 upon species, sex, racial and family ancestors ; it is therefore 

 apparent that the inborn physiological characters of the species 

 and sex are fixed and stable ; they are the stem of the tree of 

 life, on which has been grafted the characters of race and family 

 progenitors, these being of later evolution, and more capable of 

 variation and mutation. 



The future of the race, born of these two hypothetical 

 children, would depend upon whether they were well-born — 

 and by well-born I do not necessarily mean of wealthy or 

 aristocratic parents, but of parents possessed of healthy minds 

 in healthy bodies, coming from good stocks of broad-chested 

 sires and deep-bosomed mothers ; endowed with courage, 

 honesty, and common-sense, which is the inborn aptitude of 



