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Geometry has two great treasures one is the Theorem of Pythagoras the other, the division of a line into extreme and mean ratio. The first we may compare to a measure of gold the second we may name a precious jewel.

Johannes Kepler

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Johannes Kepler
Age: 58 †
Born: 1571
Born: December 21
Died: 1630
Died: November 15
Astrologer
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John Kepler
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More quotes by Johannes Kepler

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I am a Lutheran astrologer, I throw away the nonsense and keep the hard kernel.
Johannes Kepler
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Ships and sails proper for the heavenly air should be fashioned. Then there will also be people, who do not shrink from the dreary vastness of space.
Johannes Kepler
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The Earth is round, and is inhabited on all sides, is insignificantly small, and is borne through the stars.
Johannes Kepler
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I had the intention of becoming a theologian...but now I see how God is, by my endeavors, also glorified in astronomy, for 'the heavens declare the glory of God.'
Johannes Kepler
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Discover the force of the skies O Men: once recognised it can be put to use.
Johannes Kepler
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We find, therefore, under this orderly arrangement, a wonderful symmetry in the universe, and a definite relation of harmony in the motion and magnitude of the orbs, of a kind that is not possible to obtain in any other way.
Johannes Kepler
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Gravity is a mutual affection between cognate bodies towards union or conjunction (similar in kind to the magnetic virtue), so that the earth attracts a stone much rather than the stone seeks the earth.
Johannes Kepler
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If the earth should cease to attract its waters to itself all the waters of the sea would be raised and would flow to the body of the moon.
Johannes Kepler
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If the moon and earth were not retained in their orbits by their animal force or some other equivalent, the earth would mount to the moon by a fifty-fourth part of their distance, and the moon fall towards the earth through the other fifty-three parts, and they would there meet, assuming, however, that the substance of both is of the same density.
Johannes Kepler
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Yet in this my stars were not Mercury as morning star in the angle of the seventh house, in quartile with Mars, but they were Copernicus, they were Tycho Brahe, without whose books of observations everything which has now been brought by me into the brightest daylight would lie buried in darkness.
Johannes Kepler
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Astronomy would not provide me with bread if men did not entertain hopes of reading the future in the heavens.
Johannes Kepler
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So long as the mother, Ignorance, lives, it is not safe for Science the offspring, to divulge the hidden causes of things.
Johannes Kepler
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Just as the eye was made to see colours, and the ear to hear sounds, so the human mind was made to understand, not whatever you please, but quantity.
Johannes Kepler
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The chief aim of all investigations of the external world should be to discover the rational order and harmony which has been imposed on it by God and which He revealed to us in the language of mathematics.
Johannes Kepler
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Geometry existed before the creation. It is co-eternal with the mind of God...Geometry provided God with a model for the Creation.
Johannes Kepler
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The wisdom of the Lord is infinite as are also His glory and His power. Ye heavens, sing His praises sun, moon, and planets, glorify Him in your ineffable language! Praise Him, celestial harmonies, and all ye who can comprehend them! And thou, my soul, praise thy Creator! It is by Him and in Him that all exist.
Johannes Kepler
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I used to measure the Heavens, now I measure the shadows of Earth. The mind belonged to Heaven, the body's shadow lies here.
Johannes Kepler
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A mind is accustomed to mathematical deduction, when confronted with the faulty foundations of astrology, resists a long, long time, like an obstinate mule, until compelled by beating and curses to put its foot into that dirty puddle.
Johannes Kepler
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I also ask you my friends not to condemn me entirely to the mill of mathematical calculations, and allow me time for philosophical speculations, my only pleasures.
Johannes Kepler
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The moon... is a mass, akin to the mass of the earth, attracts the waters by a magnetic force, not because they are liquid, but because they possess earthy substance, and so share in the movements of a heavy body.
Johannes Kepler