“War grows out of ordinary human nature.”

“It was the seventh of November, 1918. The war was finally over. Maybe it would be declared a holiday and named War's End Day or something equally hopeful and wrong. Wars would break out again. Violence was part of human nature as much as love and generosity.”

“There is something about wills which brings out the worst side of human nature. People who under ordinary circumstances are perfectly upright and amiable, go as curly as corkscrews and foam at the mouth, whenever they hear the words 'I devise and bequeath.”

“war grows out of desire of the individual to gain advantage at the expense of his fellow man.”

“On the twelfth of June, the forces of Western Europe crossed the borders of Russia, and war began--that is, an event took place contrary to human reason and to the whole of human nature.”

“Like it or not, war is distinctively human. Apart from the raiding behavior of chimpanzees and the so-called wars prosecuted by certain species of ant, there is nothing in nature that comes anywhere near approximating it.”