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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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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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Discover the force of the skies O Men: once recognised it can be put to use.
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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Where there is matter, there is geometry.
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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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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Eyesight should learn from reason.
Johannes Kepler
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...Those laws are within the grasp of the human mind. God wanted us to recognize them by creating us after his own image so that we could share in his own thoughts... and if piety allow us to say so, our understanding is in this respect of the same kind as the divine, at least as far as we are able to grasp something of it in our mortal life.
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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O telescope, instrument of much knowledge, more precious than any sceptre!
Johannes Kepler
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As soon as somebody demonstrates the art of flying, settlers from our species of man will not be lacking on the moon and Jupiter... Given ships or sails adapted to the breezes of heaven, there will be those who will not shrink from even that vast expanse.
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 sun alone appears, by virtue of his dignity and power, suited for this motive duty (of moving the planets) and worthy to become the home of God himself.
Johannes Kepler
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Planets move in ellipses with the Sun at one focus.
Johannes Kepler
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Nature uses as little as possible of anything.
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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Since we astronomers are priests of the highest God in regard to the book of nature, it befits us to be thoughtful, not of the glory of our minds, but rather, above all else, of the glory of God.
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
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Truth is the daughter of time, and I feel no shame in being her midwife.
Johannes Kepler
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The Creator, the fountain of all wisdom, the approver of perpetual order, the eternal and superessential spring of geometry and harmonics.
Johannes Kepler