28 MODERN DIFFICULTIES 



verse of reality contains no chaotic part; that all is 

 {: coherent; that part is related to part and fact to fact; 

 so that a correct knowledge of things means a knowl- 

 edge of them as interrelated, and as capable of being 

 described in terms of intelligible unity. Thus the 

 phenomena of heat, light, and electricity are described 

 in relation to those of energy and motion; organic 

 matter must be described in relation to the phenomena 

 of life; and physical and mental phenomena have to 

 be described as parts of one system of reality, how- 

 ever diverse they may be in themselves. Unless all 

 this is taken for granted, no rational basis exists for 

 the undertaking of science to generalize, co-ordinate 

 and unify. A chaos can never be the subject-matter 

 of science. 



No intelligent scientist denies this. But scientific 

 specialists are often prevented by their exclusive devo- 

 tion to limited aspects of reality from realizing that no 

 department of reality can logically be excluded from 

 the realm of order, unity, and rational intelligibiHty. 

 Reality and intelligibility go together, and to repudiate 

 the applicability of scientific methods to the spiritual 

 realm cannot be justified except by a repudiation of the 

 reality of the spiritual. The point to which I am 

 coming is this : that the task of science can never fully 

 be achieved until all departments of reality are co-ordi- 

 / nated and all knowledge, whether of the natural or of 

 j the supernatural, is brought into intelligible unity. 

 Two important consequences follow. The first of these 

 is generally granted; that is, that no theological knowl- 



