“A human being is a problem in search of a solution.”

“Man beset by anarchy, banditry, chaos and extinction must at last resort turn to that chamber of horrors, human enlightenment. For he has nowhere else to turn.”

“The hunter died when he achieved supremacy. Perhaps the death of the hunter will be the long monument to interglacial man. We denied a future to our sucessor beings.”

“But we were born of risen apes, not fallen angels, and the apes were armed killers besides. And so what shall we wonder at? Our murders and massacres and missiles, and our irreconcilable regiments? Or our treaties whatever they may be worth; our symphonies however seldom they may be played; our peaceful acres, however frequently they may be converted into battlefields; our dreams however rarely they may be accomplished. The miracle of man is not how far he has sunk but how magnificently he has risen. We are known among the stars by our poems, not our corpses.”

“What we call patriotism, in other words, is a calculable force which, released by a predictable situation, will animate man in a manner no different from other territorial species.”

“We were born of risen apes, not fallen angels, and the apes were armed killers besides. And so what shall we wonder at? Our murders and massacres and missiles, and our irreconcilable regiments?”

“The dog barking at you from behind his master's fence acts for a motive indistinguishable from that of his master when the fence was built.”