Frasi Giovanni Keplero

„Just as the eye was made to see colours, and the ear to hear sounds, so the human mind was made to understand“

—  Johannes Kepler

I. 31 as quoted by Edwin Arthur Burtt in The Metaphysical Foundations of Modern Physical Science
Contesto: 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.

„Truth is the daughter of time, and I feel no shame in being her midwife.“

—  Johannes Kepler

As quoted in The Ismailis in the Middle Ages: A History of Survival, A search for Salvation (2007) by Shafique N. Virani, p. 28
Originale: (la) Temporis filia veritas; cui me obstetricari non pudet.

„Geometry has two great treasures: one is the Theorem of Phythagoras, the other the division of a line in extreme and mean ratio. The first we can compare to a mass of gold; the other we may call a precious jewel.“

—  Johannes Kepler, libro Mysterium Cosmographicum

As quoted by Karl Fink, Geschichte der Elementar-Mathematik (1890) translated as A Brief History of Mathematics https://books.google.com/books?id=3hkPAAAAIAAJ (1900, 1903) by Wooster Woodruff Beman, David Eugene Smith. Also see Carl Benjamin Boyer, A History of Mathematics (1968).
Mysterium Cosmographicum (1596)

„I used to measure the heavens, now I measure the shadows of Earth.
Although my mind was heaven-bound, the shadow of my body lies here.“

—  Johannes Kepler

Epitaph he composed for himself a few months before he died, as quoted in Calculusː Multivariable (2006) by Steven G. Krantz and Brian E. Blank. p. 126
Unsourced variant: I used to measure the Heavens, now I measure the shadows of Earth. The mind belonged to Heaven, the body's shadow lies here.

„The laws of nature are but the mathematical thoughts of God.“

—  Johannes Kepler

Attributed to Kepler in some sources (though more recent sources often attribute it to Euclid), such as Mathematically Speaking: A Dictionary of Quotations edited by Carl C. Gaither and Alma E. Cavazos-Gaither (1998), p. 214 http://books.google.com/books?id=4abygoxLdwQC&lpg=PP1&pg=PA214#v=onepage&q&f=false. The earliest publication located that attributes the quote to Kepler is the piece "The Mathematics of Elementary Chemistry" by Principal J. McIntosh of Fowler Union High School in California, which appeared in School Science and Mathematics, Volume VII ( 1907 http://books.google.com/books?id=kAEUAAAAIAAJ&pg=PR3#v=onepage&q&f=false), p. 383 http://books.google.com/books?id=kAEUAAAAIAAJ&pg=PA383#v=onepage&q&f=false. Neither this nor any other source located gives a source in Kepler's writings, however, and in an earlier source, the 1888 Notes and Queries, Vol V., it is attributed on p. 165 http://books.google.com/books?id=0qYXAQAAMAAJ&pg=PA165#v=onepage&q&f=false to Plato. Expressions that relate geometry to the divine "mind of God" include comments in the Harmonices Mundi, e.g., "Geometry is one and eternal shining in the mind of God", and "Since geometry is co-eternal with the divine mind before the birth of things, God himself served as his own model in creating the world".
Disputed quotes

„There is a force in the earth which causes the moon to move.“

—  Johannes Kepler

Essay dedicated to the Archduke Ferdinand, as quoted in Kepler (1993) by Max Caspar, Sect. II, Ch. 9, p. 110
Originale: (la) In Terra inest virtus, quae Lunam del.

„Discover the force of the heavens O Men:
Once recognised it can be put to use:
No use could be seen in unknown things.“

—  Johannes Kepler

De fundamentis astrologiae certioribus [On the more Certain Fundamentals of Astrology or On Giving Astrology Sounder Foundations] (written 1601; published 1602) in Opera Omnia, Vol. 1, Heyder & Zimmer, 1858, p. 417 (title-page)
Originale: (la) Vim coeli reserate viri: venit agnita ad usus:
Ignotae videas commoda nulla rei.

„The Earth sings Mi-Fa-Mi, so we can gather ever from this that Misery and Famine reign in our habitat.“

—  Johannes Kepler, libro Harmonices Mundi

Book V, Ch. 6 as quoted in Arthur Koestler, The Sleepwalkers (1959)
Harmonices Mundi (1618)

„No operation of addition or subtraction gives rise to diversity, but all are equally related to their pair of Terms, or Elements.“

—  Johannes Kepler, libro Harmonices Mundi

Book I, sect. XX, as translated by Aiton, Duncan and Field, American Philosophical Society (1997), p 25.
Harmonices Mundi (1618)

„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“

Autori simili

Gottfried Wilhelm von Leibniz photo
Gottfried Wilhelm von Leibniz29
matematico e filosofo tedesco
Isaac Newton photo
Isaac Newton18
matematico, fisico, filosofo naturale, astronomo, teologo e…
Immanuel Kant photo
Immanuel Kant63
filosofo tedesco
Cartesio photo
Cartesio46
filosofo e matematico francese
Johann Gottfried Herder photo
Johann Gottfried Herder4
filosofo e teologo tedesco
Georg Christoph Lichtenberg photo
Georg Christoph Lichtenberg55
fisico, scrittore e aforista tedesco
Friedrich Schiller photo
Friedrich Schiller52
poeta, filosofo e drammaturgo tedesco
Novalis photo
Novalis51
poeta e teologo tedesco
Galileo Galilei photo
Galileo Galilei39
scienziato italiano
Gotthold Ephraim Lessing photo
Gotthold Ephraim Lessing22
scrittore, filosofo e drammaturgo tedesco
Anniversari di oggi
Rick Riordan photo
Rick Riordan44
scrittore statunitense 1964
Carmine Crocco photo
Carmine Crocco21
brigante italiano 1830 - 1905
Ray Bradbury photo
Ray Bradbury74
scrittore statunitense 1920 - 2012
Horatio Herbert Kitchener photo
Horatio Herbert Kitchener1
generale britannico 1850 - 1916
Altri 74 anniversari oggi
Autori simili
Gottfried Wilhelm von Leibniz photo
Gottfried Wilhelm von Leibniz29
matematico e filosofo tedesco
Isaac Newton photo
Isaac Newton18
matematico, fisico, filosofo naturale, astronomo, teologo e…
Immanuel Kant photo
Immanuel Kant63
filosofo tedesco
Cartesio photo
Cartesio46
filosofo e matematico francese
Johann Gottfried Herder photo
Johann Gottfried Herder4
filosofo e teologo tedesco
x