VIII 



Ufe; Body and Mind 



NOW I come to my most difficult subject, 

 and one which perhaps I should not be 

 discussing at all ; but in the general scrutiny of 

 the structure of science we cannot omit the most 

 interesting part of all. Besides, we have seen 

 how subtle the distinction may be between inani- 

 mate and animate things, and perhaps some 

 consideration of biological facts will enlarge our 

 view of lifeless things, even as some excursion 

 into non-Euchdean geometry enhances our ap- 

 preciation of the Euclidean. It may even be 

 amusing to the biologist to see how some of his 

 problems look to the innocent bystander. If I 

 say some things that seem uncouth according 

 to his fashions it will not be for the sake of pro- 

 voking resentment, and I shall hope from him a 

 good-natured tolerance rather than a feeling of 

 irritation. 



Indeed, it is easier for an outsider to say 

 some things which the biologist himself might 

 occasionally wish to say, for he is in an awkward 

 situation. Of all the natural sciences, his touches 

 most closely those human passions and preju- 



