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I shall not mingle conjectures with certainties.

Isaac Newton

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Isaac Newton
Age: 84 †
Born: 1643
Born: January 4
Died: 1727
Died: March 20
Alchemist
Astrologer
Astronomer
Chemist
Inventor
Mathematician
Non-Fiction Writer
Philosopher
Physicist
Politician
Polymath
Theologian
Newton
Sir Isaac Newton
Isaacus Neutonus
Isaacus Newtonus
I. Newton
Isaac Newtonius
I. Newtonius
Izaak Newton
Issac Newton
Isaak. N'ûton
Isaaco Newton
Isaak Newton
Ayzik Nyuton
Niu-tun
Is. N'ûton
Isaac Neuton
Izaak. N'juton
Isaak N'juton
Niu-tun.
Isaak N'iuton
Izaak. Newton
Mingle
Conjecture
Certainty
Shall
Conjectures
Certainties

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What we know is a drop, what we don't know is an ocean.
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All my discoveries have been made in answer to prayer.
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Definition of inertia: 'The vis insita, or innate force of matter, is a power of resisting by which every body, as much as in it lies, endeavours to preserve its present state, whether it be of rest or of moving uniformly forward in a straight line.
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The changing of Bodies into Light, and Light into Bodies, is very conformable to the Course of Nature, which seems delighted with Transmutations.
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The seed of a tree has the nature of a branch or twig or bud. It is a part of the tree, but if separated and set in the earth to be better nourished, the embryo or young tree contained in it takes root and grows into a new tree.
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The main Business of Natural Philosophy is to argue from Phænomena without feigning Hypotheses, and to deduce Causes from Effects till we come to the very first Cause, which certainly is not mechanical and not only to unfold the Mechanism of the World, but chiefly to resolve these, and to such like Questions.
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Do not Bodies and Light act mutually upon one another that is to say, Bodies upon Light in emitting, reflecting, refracting and inflecting it, and Light upon Bodies for heating them, and putting their parts into a vibrating motion wherein heat consists?
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His epitaph: Who, by vigor of mind almost divine, the motions and figures of the planets, the paths of comets, and the tides of the seas first demonstrated.
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I do not feign hypotheses.
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I can see so far because I stood on the shoulders of giants.
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An object that is at rest will tend to stay at rest. An object that is in motion will tend to stay in motion.
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You ask me how, with so much study, I manage to retene my health. Morpheus is my last companion without 8 or 9 hours of him yr correspondent is not worth one scavenger's peruke. My practices did at ye first hurt my stomach, but now I eat heartily enou' as y' will see when I come down beside you.
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We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances.
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Godliness consists in the knowledge love & worship of God, Humanity in love, righteousness & good offices towards man.
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We are not to consider the world as the body of God: he is an uniform being, void of organs, members, or parts and they are his creatures, subordinate to him, and subservient to his will.
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The Prophecies of Daniel are all of them related to one another, as if they were but several parts of one general Prophecy, given at several times. The first is the easiest to be understood, and every following Prophecy adds something new to the former.
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The Ignis Fatuus is a vapor shining without heat.
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How came the bodies of animals to be contrived with so much art, and for what ends were their several parts? Was the eye contrived without skill in Opticks, and the ear without knowledge of sounds?...and these things being rightly dispatch’d, does it not appear from phænomena that there is a Being incorporeal, living, intelligent...?
Isaac Newton
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As I am writing, another illustration of ye generation of hills proposed above comes into my mind. Milk is as uniform a liquor as ye chaos was. If beer be poured into it & ye mixture let stand till it be dry, the surface of ye curdled substance will appear as rugged & mountanous as the Earth in any place.
Isaac Newton
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I have presented principles of philosophy that are not, however, philosophical but strictly mathematical-that is, those on which the study of philosophy can be based. These principles are the laws and conditions of motions and of forces, which especially relate to philosophy.
Isaac Newton