66 TWO THEORIES OF KNOWLEDGE 



a material body, when its sensible concomitants 

 are abstracted, is nothing more than a permanent 

 process of energy transmutation the interruption of 

 \ which in one form or another may originate Sensa- 

 tion. It follows that the world of spatially ex- 

 tended bodies is a homogeneous and consistent 

 whole, reflecting in its laws and forms the real 

 operations by which it is constituted and sustained. 

 But all this actual World is nevertheless phenomenal 

 only, albeit the phenomena are derived from and 

 related to the Real as change is to the thing which 

 changes. 



To a large extent we are misled by the impressive 

 prominence of the visual data. In vision we are 

 presented with a system of inter-related and 

 simultaneously occurring sensations which we find 

 by experience to be the sure and certain indicators 

 of the potent obstructions which our activity 

 encounters. For this reason we habitually make 

 use of the visual sign as the guide and instrument 

 of our exertional activity, and this habitual use 

 .leads us to regard the visual presentation as the 

 essential form of Reality. However sure we are 

 that that is a false view, it yet is very difficult to 

 retrace our steps and re-enter the elemental dark- 

 ness which involves the blind. 



The philosophic value of the interpretation of 



