104 THE DOCTRINE OF ENERGY 



beyond the phenomena which constitute my 

 experience. 



I cannot exist without some development of 

 activity. Hence are derived my conceptions of 

 free space and of resistance between bodies. My 

 primary sensations are the sensations of touch, and 

 the primary impulse of thought is to relate these 

 with my active exertions. When sight is first re- 

 stored to the blind the first impulse is to regard the 

 new sensation as a form of touch. Its intellectual 

 suggestiveness is a development. The system or 

 stream of transmutations in which my volitional 

 activity principally takes part is that represented 

 by the operation of the forces of Gravitation and 

 Cohesion ; the system which influences my visual 

 sensations is a quite different series. The changes 

 in this latter series, by their greater rapidity, enable 

 me to anticipate the other series, and for this and 

 other reasons I employ these sensations to signalise 

 and symbolise the transmutations proceeding in 

 the series with which I am more immediately re- 

 lated as an active and " willing " agent. All trans- 

 mutations, if they result in sensations, must do so by 

 producing changes in the Energy of my organism, 

 and must therefore be conditioned by the general 

 laws which regulate the changes which occur there, 

 or, in other words, must be contained within a self- 



