Ere many generations pass, our machinery will be driven by a power obtainable at any point of the universe. This idea is not novel. Men have been led to it long ago by instinct or reason; it has been expressed in many ways, and in many places, in the history of old and new. We find it in the delightful myth of Antaeus, who derives power from the earth; we find it among the subtle speculations of one of your splendid mathematicians and in many hints and statements of thinkers of the present time. Throughout space there is energy. Is this energy static or kinetic! If static our hopes are in vain; if kinetic — and this we know it is, for certain — then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature.
Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more.
Let the future tell the truth and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I really worked, is mine.
Every Israelite has a duty to study whether he is poor or rich, whether healthy or suffering, whether young or very old and in failing strength, even if he is poor and supported by charity or begs from door to door.
One of the best ways of enslaving a people is to keep them from education... The second way of enslaving a people is to suppress the sources of information, not only by burning books but by controlling all the other ways in which ideas are transmitted. (11 May 1943)
It is a partnership in all science; a partnership in all art; a partnership in every virtue and in all perfection. As the ends of such a partnership cannot be obtained in many generations, it becomes a partnership not only between those who are living, but between those who are living, those who are dead, and those who are to be born.