[8] 



stand, if not to sympathize with, mental 

 states alien or even hostile. 



An Age of Force followed the final sub- 

 jugation of Nature. The dynamo replaced 

 the steam-engine, radiant energy revealed 

 the hidden secrets of matter, to the con- 

 quest of the earth was added the control of 

 the air and the mastery of the deep. Nor 

 was it only an Age of Force. Never before 

 had man done so much for his brother, the 

 victory over the powers of Nature meant 

 also glorious victories of peace ; pestilences 

 were checked, the cry of the poor became 

 articulate, and to help the life of the sub- 

 merged half became a sacred duty of the 

 other. How full we were of the pride of life ! 

 In 1910 at Edinburgh I ended an address 

 on "Man's Redemption of Man" with 

 the well-known lines of Shelley beginning, 

 4 'Happiness and Science dawn though late 

 ) upon the earth." And now, having sur- 

 vived the greatest war in history, and a 



