# Albert Einstein

## A Quote by Albert Einstein on ideas, language, science, and simplicity

Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone.

Source: The Evolution of Physics.

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## 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 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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