RELATIONS BETWEEN MIND AND MATTER. . 99 



that matter is not what it was thought to be or to be like, that 

 its nature is as mysterious as is the nature of mind. In expe- 

 rience we find the two always associated. Experience leads to 

 the belief that one of these is imperishable, and we make it 

 a corner-stone in physical science ; and my thesis is that mind 

 can no more be sloughed off from it than can gravity or mag- 

 netism or any other of its inherent qualities. 



