248 INTRODUCTION TO SCIENCE 



theoretically understand, but long experience of 

 it alone can develop it into a powerful and steady 

 impulse." 



In this chapter we have used the word utility 

 in the sense of practical utility, having in other 

 chapters said enough to show that Science can 

 justify itself, if necessary, at a higher court of 

 appeal. For Science is a natural and necessary 

 development and discipline of Man; it supplies 

 stimulus and raw material to literature and art; 

 and it has contributed to the store of great ideas 

 which should always be in the saddle and should 

 always rule mankind. 



SUMMARY. Science is justified for its own sake 

 as a natural and necessary human activity. It has 

 grown out of practical lore and always receives 

 fresh stimulus by coming back to practical problems. 

 One of the great conditions of human progress is 

 the unceasing reciprocal relationship between science 

 and occupation. The practical utility of the sciences 

 is so great that there is danger in exaggerating utili- 

 tarian criteria. Nothing is more certain than the 

 fundamental value of "theoretical science." But 

 while the greatest practical gains have come from 

 the prosecution of "pure science," it may be agreed 

 that Science should be socialized, for, after all, Sci- 

 ence is for Life, not Life for Science. As Comte 

 said, "Knowledge is Foresight, and Foresight is 

 Power." 



