Celebrating 24 Years on the Web
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “Environmental extremists ... wouldn�t let you build a house unless it looked like a bird�s nest.”
more quiz questions >>
Home > Dictionary of Science Quotations > Scientist Names Index I > Saint Isidore of Seville Quotes

Saint Isidore of Seville
(c. 560 - 4 Apr 636)

Spanish theologian, bishop and scholar who was a great scholar in his age that strongly influenced the expansion of knowledge in the Middle Ages.

Science Quotes by Saint Isidore of Seville (4 quotes)

Tolle numerum omnibus rebus et omnia pereunt.
Take from all things their number and all shall perish.
— Saint Isidore of Seville
Etymologies [c.600], Book III, chapter 4, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. E. Brehaut (1912), revised by E. Grant, 5.
Science quotes on:  |  Measurement (178)  |  Number (710)  |  Perish (56)  |  Thing (1914)

It is agreed that all sound which is the material of music is of three sorts. First is harmonica, which consists of vocal music; second is organica, which is formed from the breath; third is rhythmica, which receives its numbers from the beat of the fingers. For sound is produced either by the voice, coming through the throat; or by the breath, coming through the trumpet or tibia, for example; or by touch, as in the case of the cithara or anything else that gives a tuneful sound on being struck.
— Saint Isidore of Seville
Etymologies [c.600], Book III, chapter 19, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. E. Brehaut (1912), revised by E. Grant, 10.
Science quotes on:  |  Beat (42)  |  Being (1276)  |  Breath (61)  |  Coming (114)  |  Consist (223)  |  First (1302)  |  Form (976)  |  Material (366)  |  Music (133)  |  Number (710)  |  Produced (187)  |  Receive (117)  |  Sound (187)  |  Throat (10)  |  Through (846)  |  Touch (146)  |  Voice (54)

Number is divided into even and odd. Even number is divided into the following: evenly even, evenly uneven, and unevenly uneven. Odd number is divided into the following: prime and incomposite, composite, and a third intermediate class (mediocris) which in a certain way is prime and incomposite but in another way secondary and composite.
— Saint Isidore of Seville
Etymologies [c.600], Book III, chapter 5, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. E. Brehaut (1912), revised by E. Grant, 5.
Science quotes on:  |  Certain (557)  |  Class (168)  |  Divided (50)  |  Even (2)  |  Intermediate (38)  |  Number (710)  |  Odd (15)  |  Prime Number (5)  |  Way (1214)

The name of medicine is thought to have been given from 'moderation', modus, that is, from a due proportion, which advises that things be done not to excess, but 'little by little', paulatim. For nature is pained by surfeit but rejoices in moderation. Whence also those who take drugs and antidotes constantly, or to the point of saturation, are sorely vexed, for every immoderation brings not health but danger.
— Saint Isidore of Seville
Etymologies [c.600], Book IV, chapter 2, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. W. D. Sharpe (1964), 701.
Science quotes on:  |  Antidote (9)  |  Danger (127)  |  Drug (61)  |  Due (143)  |  Excess (23)  |  Health (210)  |  Hypochondriac (9)  |  Little (717)  |  Medicine (392)  |  Moderation (2)  |  Name (359)  |  Nature (2017)  |  Pain (144)  |  Point (584)  |  Proportion (140)  |  Saturation (9)  |  Thing (1914)  |  Thought (995)  |  Vex (10)

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
Quotations by:Albert EinsteinIsaac NewtonLord KelvinCharles DarwinSrinivasa RamanujanCarl SaganFlorence NightingaleThomas EdisonAristotleMarie CurieBenjamin FranklinWinston ChurchillGalileo GalileiSigmund FreudRobert BunsenLouis PasteurTheodore RooseveltAbraham LincolnRonald ReaganLeonardo DaVinciMichio KakuKarl PopperJohann GoetheRobert OppenheimerCharles Kettering  ... (more people)

Quotations about:Atomic  BombBiologyChemistryDeforestationEngineeringAnatomyAstronomyBacteriaBiochemistryBotanyConservationDinosaurEnvironmentFractalGeneticsGeologyHistory of ScienceInventionJupiterKnowledgeLoveMathematicsMeasurementMedicineNatural ResourceOrganic ChemistryPhysicsPhysicianQuantum TheoryResearchScience and ArtTeacherTechnologyUniverseVolcanoVirusWind PowerWomen ScientistsX-RaysYouthZoology  ... (more topics)
Sitewide search within all Today In Science History pages:
Visit our Science and Scientist Quotations index for more Science Quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists, pioneers in medicine, science events and technology.

Names index: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Categories index: | 1 | 2 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Thank you for sharing.
- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton

by Ian Ellis
who invites your feedback
Thank you for sharing.
Today in Science History
Sign up for Newsletter
with quiz, quotes and more.