THE UNFATHOMED UNIVERSE 35 



so as to exclude them, — that is a question of method, — but 

 to think of leaving them out in our total interpretation of 

 our experience is to allow the light that is in us to be 

 darkened. Similarly, although there is great difference of 

 opinion in regard to the philosophy of the beautiful, there 

 is general agreement that our total outlook on Xature is 

 to be distrusted if the fact of beauty has been ignored. 

 Feeling is to be excluded from scientific investigation, but 

 it must be allowed to operate in our philosophical synthesis. 

 Perhaps we may say that feeling supplies the mortar in 

 which are laid the stones contributed by ISTatural Science 

 to the (synoptic) edifice which the genius of Philosophy is 

 building. 



There are several hopeful indications of an advance 

 towards a philosophical order of E'ature. The first is the 

 increasing correlation of the sciences, which are parts of 

 one endeavour to understand the order of l^ature and Man's 

 life in its midst. The sciences work into one another's hands 

 in correlation, and this has always been fruitful, as is well 

 illustrated by the transforming and vitalising of chemistry 

 after it joined hands with physics. The scientific study 

 of animal behaviour, still in the freshness of its youth, shows 

 us the effectiveness of a combined attack — psychological and 

 biological — on a difficult set of problems. The autonomy 

 of biology is not inconsistent with its correlation — impenum 

 in imperio — with chemistry and physics on the one hand 

 and psychology and sociology on the other. AYliile the 

 sciences are separated off for the sake of clearness, because 

 they pursue different methods, use different tools, and sum 

 up in different kinds of formulae, they work into one another's 

 hands, and they are simply different modes of one rational 

 inquiry. Their mutual influence is increased, not decreased, 



