6 THEORY OF EVOLUTION 



he believes he makes use of hmiself in the in- 

 organic world. 



What has the evolution of the stars, of the 

 horse and of human inventions in common? 

 Only this, that in each case from a simple be- 

 ginning through a series of changes something 

 more complex, or at least different, has come 

 into being. To lump all these kinds of changes 

 into one and call them evolution is no 

 more than asserting that you believe in con- 

 secutive series of events (which is history) 

 causally connected (which is science) ; that is, 

 that you believe in history and that you believe 

 in science. But let us not forget that we may 

 have complete faith in both without thereby 

 offering any explanation of either. It is the 

 business of science to find out speciiicaJly what 

 kinds of events were involved when the stars 

 evolved in the sky, when the liorse evolved on 

 the earth, and the steam engine was evolved 

 from the mind of man. 



Is it not rather an empty generalization to 

 say that any kind of change is a process of evo- 

 lution ? At most it means little more than that 

 vou want to intimate that miraculous interven- 



