REVOLUTION VS. EVOLUTION 
323 
workers; but it is not the fault of man that the stores of iron ore 
are limited, and the acres of tillable land are i^umbered. As 
in the past, so in the twentieth century, the impelling forces of 
progress are inherent in the environment; the response must 
be dependent upon virtues intrinsic in the creatures who are to 
be thus tested. Some will undoubtedly be found wanting; for 
them the penalty has always been either extinction or stagna- 
tion. Others — and in the past it has generally been a minority — 
will respond with habits that will prove to be their salvation; 
they, and they alone, will profit by the revolution. 
To prophecy is always to incur the danger of post-mortem 
pillorying. But it requires no unusual acumen to see that this 
next milestone in the progress of life will be safely passed only 
by those who specialize in the art of cooperation, as opposed to 
selfishness, and in the practice of kindly thoughtfulness for 
others, regardless of their color, race or creed. 
