MATTER AND MIND 19 



structures will revolutionize our knowledge 

 of biology and physiology, and cause astound- 

 ing advances in the applied medical sciences. 



The mystery of life is often spoken of as if it 

 were the crowning mystery of all things, and 

 indeed it has its wonderful secrets like all the 

 natural phenomena of the world. But the 

 riddle of the universe lies much deeper than 

 life. The evolution of life from inorganic 

 materials is only one stage more mysterious 

 than the evolution of any one form of matter 

 from another, for in fact it is of that type, 

 and the new energy changes are little more 

 startling than those which occur at other levels 

 in the chain of creation. The fundamental 

 mystery lies in the existence of those entities, 

 or things, which we call matter and energy, 

 and in the existence of the natural laws which 

 correlate them and cause all those things to 

 happen which the natural philosopher observes 

 and classifies and correlates, but cannot 

 explain in one single instance. 



The scientist has perceived through his 

 senses the existence of certain things, and that 

 by following certain laws a world including 

 himself is evolved. He has proceeded to 

 enunciate and work out the simplest system 

 which will correlate all these things ; and all 

 scientific work consists in extending this sys- 



pf 



