The price of empire is America's soul, and that price is too high.

Power confuses itself with virtue and tends also to take itself for omnipotence.

What a curious picture it is to find man, homo sapiens, of divine origin, we are told, seriously considering going underground to escape the consequences of his own folly. With a little wisdom and foresight, surely it is not yet necessary to forsake life in the fresh air and in the warmth of the sunlight. What a paradox if our own cleverness in science should force us to live underground with the moles.

Education is a slow-moving but powerful force. It may not be fast enough or strong enough to save us from catastrophe, but it is the strongest force available for that purpose and in its proper place, therefore, is not at the periphery, but at the center of international relations.

"Our government will soon become what it is already a long way toward becoming, an elective dictatorship.

Like medieval theologians we had a philosophy that explained everything to us in advance, and everything that did not fit could be readily identified as a fraud or a lie or an illusion... The perniciousness of the anti-Communist ideology of the Truman Doctrine arises not from any patent falsehood but from its distortion and simplification of reality, from its universalization and its elevation to the status of a revealed truth.

Science has radically changed the conditions of human life on earth. It has expanded our knowledge and our power, but not our capacity to use them with wisdom.