120 PERSONALITY 



Hence although in giving an account of per 

 ception and volition as a whole we make use 

 of the conception of personality, and cannot 

 otherwise state the facts, there is abundant 

 room left for a physiological account of 

 the sense organs, nervous system, muscular 

 activity, etc., provided that we recognise that 

 such an account always deals abstractly with 

 the phenomena, for the sufficient reason that 

 a fuller and more concrete account cannot at 

 present be given. In the same way we treat 

 the action of the muscles on the limbs, or of 

 the limbs on the environment, or of the 

 environment on the sensory organs, from the 

 merely physical standpoint. This is an 

 abstract method of treatment, as we have 

 already seen ; but it is to some extent the only 

 method available. Provided we do not make 

 the mistake of confusing the physical account 

 of the world with reality, we are perfectly 

 justified in making all the use we can of this 

 physical account. The mere physical facts, 

 however, belong properly to neither physiology 

 nor psychology. 



Much of the most valuable part of our 

 physiological knowledge results from the 



