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Every reference-body (co-ordinate system) has its own particular time; unless we are told the reference-body to which the statement of time refers, there is no meaning in a statement of the time of an event.

— Albert Einstein Relativity: The Special and General Theory (1920)

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More quotes by Albert Einstein

Whoever undertakes to set himself up as a judge of Truth and Knowledge is shipwrecked by the laughter of the gods.

Essay to Leo Baeck (1953)

A happy man is too satisfied with the present to dwell too much on the future.

Try to become not a man of success, but try rather to become a man of value.

Life is like riding a bicycle. To keep your balance you must keep moving.

Generations to come, it may well be, will scarce believe that such a man as this one ever in flesh and blood walked upon this Earth.

Statement on the occasion of Gandhi's 70th birthday (1939)

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A generation which ignores history has no past —and no future.

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From now on, everything in life will appear blurry to me. What’s the point of wiping my glasses when my vision has already left me?"

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You can never plan the future by the past.

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Nothing is there to come, and nothing past,
But an eternal now does always last.

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Quote text and notes from Wikiquote: Albert Einstein (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.