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People like you and I, though mortal of course like everyone else, do not grow old no matter how long we live...We never cease to stand like curious children before the great mystery into which we were born.
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The contemplation of this world beckoned as a liberation. The road to this paradise was not as comfortable and alluring as the road to the religious paradise; but it has shown itself reliable, and I have never regretted having chosen it.
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In matters concerning truth and justice there can be no distinction between big problems and small; for the general principles which determine the conduct of men are indivisible. Whoever is careless with truth in small matters cannot be trusted in important affairs.
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Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.
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I am a Jew, but I am enthralled by the luminous figure of the Nazarene….No one can read the Gospels without feeling the actual presence of Jesus.
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One has to realize that the powerful industrial groups concerned in the manufacture of arms are doing their best in all countries to prevent the peaceful settlement of international disputes, and that rulers can achieve this great end only if they are sure of the vigorous support of the majority of their peoples.
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I am convinced there is only one way to eliminate these grave evils, namely through the establishment of a socialist economy, accompanied by an educational system which would be oriented toward social goals.
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How many people are trapped in their everyday habits: part numb, part frightened, part indifferent? To have a better life we must keep choosing how we are living.
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For me a simple message, to think and act with courage, independence and imagination.
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If I would be a young man again and had to decide how to make my living, I would not try to become a scientist or scholar or teacher. I would rather choose to be a plumber or a peddler in the hope to find that modest degree of independence still available under present circumstances.
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At present every coachman and every waiter argues about whether or not the relativity theory is correct.
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Relativity applies to physics, not ethics.
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Nuclear power is one hell of a way to boil water.
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I never failed in mathematics. Before I was fifteen I had mastered differential and integral calculus.
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I thought of that while riding my bicycle.
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Besides agreeing with the aims of vegetarianism for aesthetic and moral reasons, it is my view that a vegetarian manner of living by its purely physical effect on the human temperament would most beneficially influence the lot of mankind.
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The sceptic will say, 'It may well be true that this system of equations is reasonable from a logical standpoint, but this does not prove that it corresponds to nature.' You are right, dear sceptic. Experience alone can decide on truth.
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The last thing to collapse is the surface.
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I believe we are here to do good. It is the responsibility of every human being to aspire to do something worthwhile, to make the world a better place than the one we found.
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I am content in my later years. I have kept my good humor and take neither myself nor the next person seriously.
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The pioneers of a warless world are the young men and women, who refuse military service.
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In the teaching of geography and history a sympathetic understanding be fostered for the characteristics of the different peoples of the world, especially for those who we are in the habit of describing as primitive.
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The only reason for time is so that everything doesn't happen at once.
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You ask me if I keep a notebook to record my great ideas. I've only ever had one.