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The greater the doubt, the greater the awakening.
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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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We Jews have been too adaptable. We have been too eager to sacrifice our idiosyncrasies for the sake of social conformity. … Even in modern civilization, the Jew is most happy if he remains a Jew.
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If the believers of the present-day religions would earnestly try to think and act in the spirit of the founders of these religions then no hostility on the basis of religion would exist among the followers of the different faiths. Even the conflicts and the realm of religion would be exposed as insignificant.
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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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The only way to escape the personal corruption of praise is to go on working. One is tempted to stop and listen to it. The only thing is to turn away and go on working. Work. There is nothing else.
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What use are socks? They only produce holes.
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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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If you feed your mind as often as you feed your stomach, then you'll never have to worry about feeding your stomach or a roof over your head or clothes on your back.
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I am fascinated by Spinoza's pantheism, but I admire even more his contribution to modern thought because he is the first philosopher to deal with the soul and body as one, and not two separate things.
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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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When a man points a finger at someone else, he should remember that three of his fingers are pointing at himself.
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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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I gang my own gait and have never belonged to my country, my home, my friends, or even my immediate family, with my whole heart; in the face of all these ties I have never lost an obstinate sense of detachment, of the need for solitude - a feeling which increases with the years.
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The more one chases the quanta, the better they hide themselves.
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You ask me if I keep a notebook to record my great ideas. I've only ever had one.
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There are few enough people with sufficient independence to see the weaknesses and follies of their contemporaries and remain themselves untouched by them.
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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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People should be more like animals . . . they should be more intuitive; they should not be too conscious of what they do while they do it.
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I was sitting in a chair in the patent office at Bern when all of sudden a thought occurred to me: If a person falls freely he will not feel his own weight. I was startled. This simple thought made a deep impression on me. It impelled me toward a theory of gravitation.
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Time is what the clock says.
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For scientific endeavor is a natural whole the parts of which mutually support one another in a way which, to be sure, no one can anticipate.
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Philosophy is like a mother who gave birth to and endowed all the other sciences. Therefore, one should not scorn her in her nakedness and poverty, but should hope, rather, that part of her Don Quixote ideal will live on in her children so that they do not sink into philistinism.
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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.