234 ENGLISH MEN OF SCIENCE. [en. in. 



perience swift and strange associations of ideas ; 

 in dreams, all men commonly exhibit more 

 vivid powers of imagination than are possessed 

 by the greatest artists when awake. Sober, 

 plodding will is quite another quality, and its 

 over-exercise exhausts the more sprightly func- 

 tions of the mind, as is expressed in the proverb, 

 " too much work makes a dull boy." But no 

 man is likely to achieve very high success in 

 whom the automatic power of the mind, or 

 genius in its special sense, and a sober will, 

 are not well developed and fairly balanced. 



