BIOLOGY'S CONTRIBUTION TO A THEORY 

 OF MORALS REQUISITE FOR 

 MODERN MEN * 



1 TRUST no apology is needed for bringing such a 

 subject as that which I have chosen before a com- 

 pany of professional naturalists. As a matter of fact, 

 if there is need for apology at all in this connection it 

 is for the backwardness of naturalists in inquiring what 

 bearing their labors have on the deepest and dearest of 

 human concerns. 



To men of science like myself, whose faith is mighty 

 that there is no human interest so deep and so dear 

 that science may not make it richer, the growing dis- 

 trust of science in our day, which only the blind can 

 fail to see, is disquieting. Whether, as some are dis- 

 posed to charge, science is inimical to all man's higher 

 welfare except his intellect, I do not inquire. The 

 comparatively restricted question of the relation of 

 biology to morals is what is to occupy us for a period. 



* A paper read before the San Diego Meeting of the Western 

 Society of Naturalists, August 11, 1916, and published as Bulle- 

 tion 2 of the Scripps Institution for Biological Research of the 

 University of California. The title under which the essay was 

 orginally published was: "Biology's Contribution to a System of 

 Morals that would be Adequate for Modern Civilization." 



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