The refusal to recognize the obsoleteness of war, the inability to change a point of view with which men have lived until now, will in the end destroy those men and liquidate their civilization. There is no possibility of escape by mere drifting and no evasion by mere ignoring of the challenge. Time is short, the decision must be made now. The correct one will necessarily be also a humbling one. It is a crisis in human affairs such as human beings never formerly dreamed possible. More than that, it is an unprecedented spiritual crisis of man. He is being put to the ultimate test. For if we study the history of evolution we shall have to note the implacable fact that those creatures which could not adapt themselves to altered conditions could not survive. They perished, and their forms perished with them.
-- Notebooks Category 13: Human Experience > Chapter 4: World Crisis > # 356