Quotes by Sir Isaac Newton
Quotes 1 till 15 of 22.
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A man may imagine things that are false, but he can only understand things that are true, for if the things be false, the apprehension of them is not understanding.
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Actioni contrariam semper et æqualem esse reactionem.
Source: Philosophiae Naturalis Principia Mathematica -
Errors are not in the art but in the artificers.
Source: Philosophiae Naturalis Principia Mathematica (1687) Preface -
Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
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I do not define time, space, place, and motion, as being well known to all.
Source: Definitions - Scholium -
I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Source: Joseph Spence, Anecdotes, Observations and Characters, of Books and Men (1820) -
I keep the subject of my inquiry constantly before me, and wait till the first dawning opens gradually, by little and little, into a full and clear light.
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I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
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If I am anything, which I highly doubt, I have made myself so by hard work.
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If I have done the public any service, it is due to my patient thought.
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If I have made any valuable discoveries, it has been owing more to patient attention than to any other talent.
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If I have seen further it is by standing on ye shoulders of Giants.
Source: Letter to Robert Hooke, 15 febr. 1676 -
If I have seen further... it is by standing upon the shoulders of giants.
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In science we resemble children collecting a few pebbles at the beach of knowledge, while the wide ocean of the unknown unfolds itself in front of us.
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My powers are ordinary. Only my application brings me success.
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