Celebrating 18 Years on the Web
TODAY IN SCIENCE HISTORY ®
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “A change in motion is proportional to the motive force impressed and takes place along the straight line in which that force is impressed.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index P > Category: Prune

Prune Quotes (7 quotes)

Common sense … may be thought of as a series of concepts and conceptual schemes which have proved highly satisfactory for the practical uses of mankind. Some of those concepts and conceptual schemes were carried over into science with only a little pruning and whittling and for a long time proved useful. As the recent revolutions in physics indicate, however, many errors can be made by failure to examine carefully just how common sense ideas should be defined in terms of what the experimenter plans to do.
In Science and Common Sense (1951), 32-33.
Science quotes on:  |  Careful (24)  |  Common Sense (126)  |  Concept (143)  |  Define (49)  |  Error (275)  |  Examine (44)  |  Experimenter (20)  |  Failure (138)  |  Idea (577)  |  Mankind (241)  |  Physics (346)  |  Plan (87)  |  Practical (129)  |  Revolution (69)  |  Satisfactory (16)  |  Science (2043)

Here are a few things to keep in mind the next time ants show up in the potato salad. The 8,800 known species of the family Formicidae make up from 10% to 15% of the world's animal biomass, the total weight of all fauna. They are the most dominant social insect in the world, found almost everywhere except in the polar regions. Ants turn more soil than earthworms; they prune, weed and police most of the earth's carrion. Among the most gregarious of creatures, they are equipped with a sophisticated chemical communications system. To appreciate the strength and speed of this pesky invertebrate, consider that a leaf cutter the size of a man could run repeated four-minute miles while carrying 750 lbs. of potato salad.
From book review, 'Nature: Splendor in The Grass', Time (3 Sep 1990).
Science quotes on:  |  Ant (24)  |  Carrion (4)  |  Carry (59)  |  Communication (75)  |  Creature (154)  |  Dominant (14)  |  Earthworm (5)  |  Equipment (29)  |  Fauna (13)  |  Gregarious (3)  |  Insect (64)  |  Invertebrate (4)  |  Mile (39)  |  Police (3)  |  Run (57)  |  Soil (64)  |  Sophistication (9)  |  Species (220)  |  Speed (35)  |  Strength (79)  |  Weed (15)  |  Weight (75)

If a person cannot love a plant after he has pruned it, then he has either done a poor job or is devoid of emotion.
In The Pruning-Book: A Monograph of the Pruning and Training of Plants (1898), 134.
Science quotes on:  |  Devoid (11)  |  Emotion (78)  |  Job (43)  |  Love (221)  |  Person (153)  |  Plant (199)  |  Poor (57)

It is incumbent upon us to keep training and pruning the tree of knowledge without looking to the right or the left.
From United States Bureau of Animal Industry, 'Investigations of Diseases of Domesticated Animals', Annual Report: Fiscal Years 1895 and 1896 (1897), Vol. 12, 150.
Science quotes on:  |  Left (13)  |  Right (196)  |  Train (45)  |  Tree Of Knowledge (7)

It must be gently but firmly pointed out that analogy is the very corner-stone of scientific method. A root-and-branch condemnation would invalidate any attempt to explain the unknown in terms of the known, and thus prune away every hypothesis.
In 'On Analogy', The Cambridge Magazine (2 Mar 1918), 476. As quoted in Robert Scott Root-Bernstein and Michθle Root-Bernstein, Sparks of Genius: The Thirteen Thinking Tools of the World’s Most Creative (2001), 144.
Science quotes on:  |  Analogy (56)  |  Attempt (121)  |  Condemnation (15)  |  Cornerstone (4)  |  Explain (105)  |  Hypothesis (249)  |  Know (547)  |  Point Out (8)  |  Scientific Method (166)  |  Term (120)  |  Unknown (105)

Philosophy is just a thing that trims religion—that prunes it.
From interview with Cecil Day Lewis on BBC (13 Sep 1957). Transcribed in Claremont Quarterly (Spring 1958). Collected in Interviews with Robert Frost (1967), 176.
Science quotes on:  |  Philosophy (257)  |  Religion (239)  |  Trim (2)

When the 1880s began. Maxwell’s theory was virtually a trackless jungle. By the second half of the decade, guided by the principle of energy flow. Poynting, FitzGerald, and above all Heaviside had succeeded in taming and pruning that jungle and in rendering it almost civilized.
In The Maxwellians (2008), 128.
Science quotes on:  |  Civilized (17)  |  Energy (214)  |  George Francis Fitzgerald (3)  |  Flow (42)  |  Guide (62)  |  Oliver Heaviside (25)  |  Jungle (14)  |  James Clerk Maxwell (82)  |  Principle (285)  |  Render (30)  |  Success (248)  |  Tame (4)  |  Theory (690)  |  Trackless (2)


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 Einstein • Isaac Newton • Lord Kelvin • Charles Darwin • Srinivasa Ramanujan • Carl Sagan • Florence Nightingale • Thomas Edison • Aristotle • Marie Curie • Benjamin Franklin • Winston Churchill • Galileo Galilei • Sigmund Freud • Robert Bunsen • Louis Pasteur • Theodore Roosevelt • Abraham Lincoln • Ronald Reagan • Leonardo DaVinci • Michio Kaku • Karl Popper • Johann Goethe • Robert Oppenheimer • Charles Kettering  ... (more people)

Quotations about: • Atomic  Bomb • Biology • Chemistry • Deforestation • Engineering • Anatomy • Astronomy • Bacteria • Biochemistry • Botany • Conservation • Dinosaur • Environment • Fractal • Genetics • Geology • History of Science • Invention • Jupiter • Knowledge • Love • Mathematics • Measurement • Medicine • Natural Resource • Organic Chemistry • Physics • Physician • Quantum Theory • Research • Science and Art • Teacher • Technology • Universe • Volcano • Virus • Wind Power • Women Scientists • X-Rays • Youth • Zoology  ... (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 |

- 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
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
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
Avicenna
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
Archimedes
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
Hippocrates
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
Aristotle
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton



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