# Albert Einstein

## A Quote by Albert Einstein on nature and secrets

Nature hides her secrets because of her essential loftiness, but not by means of ruse.

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## A Quote by Albert Einstein on bitterness and effort

The bitter and the sweet come from the outside, the hard from within, from one's own efforts.

Source: Out of My Later Years.

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## A Quote by Albert Einstein on mind

The human mind has first to construct forms, independently, before we can find them in things.

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## A Quote by Albert Einstein on thought and words

These thoughts did not come in any verbal formulation. I rarely think in words at all. A thought comes, and I may try to express it in words afterward.

Source: H. Eves Mathematical Circles Adieu, Boston: Prindle, Weber and Schmidt, 1977.

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## A Quote by Albert Einstein on certainty, needs, questions, and thought

We come now to the question: what is a priori certain or necessary, respectively in geometry (doctrine of space) or its foundations? Formerly we thought everything; nowadays we think nothing. Already the distance-concept is logically arbitrary; there need be no things that correspond to it, even approximately.

Source: "Space-Time." Encyclopaedia Britannica, 14th ed.

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## A Quote by Albert Einstein

What is this frog and mouse battle among the mathematicians? [i.e. Brouwer vs. Hilbert]

Source: H. Eves Mathematical Circles Squared Boston: Prindle, Weber and Schmidt, 1972.

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## A Quote by Albert Einstein on action, balance, beauty, dignity, existence, life, and morality

The most important human endeavor is the striving for morality in our actions. Our inner balance and even our very existence depends on it. Only morality in our actions can give beauty and dignity to life

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## A Quote by Albert Einstein on books, effort, and nature

About Newton: Nature to him was an open book, whose letters he could read without effort.

Source: G. Simmons Calculus Gems, New York: McGraw Hill, 1992.

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## A Quote by Albert Einstein on certainty, laws, mathematics, and reality

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.

Source: J. R. Newman (ed.) The World of Mathematics, New York: Simon and Schuster, 1956.

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## A Quote by Albert Einstein on difficulty, mathematics, and worry

Do not worry about your difficulties in mathematics, I assure you that mine are greater.

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