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Who said: “Every body perseveres in its state of being at rest or of moving uniformly straight forward, except insofar as it is compelled to change its state by forces impressed.”
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Home > Category Index for Science Quotations > Category Index M > Category: Man-Made

Man-Made Quotes (4 quotes)

Anglesey has two deserts, one made by Nature, the other made by Man: Newborough and Parys Mountain.
Parys Mountain was despoiled over centuries by copper mining. In A Hand Through Time (1938), Vol. 1, 293.
Science quotes on:  |  Desert (27)  |  Mountain (111)  |  Nature (1029)

I believe natural beauty has a necessary place in the spiritual development of any individual or any society. I believe that whenever we substitute something man-made and artificial for a natural feature of the earth, we have retarded some part of man’s spiritual growth.
As quoted in Linda Lear, Rachel Carson: Witness for Nature (1997), 259.
Science quotes on:  |  Artificial (26)  |  Beauty (171)  |  Belief (400)  |  Development (228)  |  Earth (487)  |  Feature (34)  |  Growth (111)  |  Individual (177)  |  Mankind (196)  |  Natural (128)  |  Necessity (125)  |  Retarded (3)  |  Society (188)  |  Spiritual (45)  |  Substitute (23)

The totality of our so-called knowledge or beliefs, from the most casual matters of geography and history to the profoundest laws of atomic physics or even of pure mathematics and logic, is a man-made fabric which impinges on experience only along the edges. Or, to change the figure, total science is like a field of force whose boundary conditions are experience. A conflict with experience at the periphery occasions readjustments in the interior of the field. Truth values have to be redistributed over some of our statements. Reevaluation of some statements entails reevaluation of others, because of their logical interconnections—the logical laws being in turn simply certain further statements of the system, certain further elements of the field.
'Two Dogmas of Experience,' in Philosophical Review (1951). Reprinted in From a Logical Point of View (1953), 42.
Science quotes on:  |  Atomic Physics (6)  |  Belief (400)  |  Boundary (27)  |  Casual (6)  |  Condition (119)  |  Conflict (49)  |  Edge (16)  |  Experience (268)  |  Fabric (13)  |  Field (119)  |  Geography (25)  |  History (302)  |  Impinge (3)  |  Interconnection (7)  |  Interior (13)  |  Knowledge (1128)  |  Law (418)  |  Logic (187)  |  Periphery (2)  |  Pure Mathematics (27)  |  Reevaluation (2)  |  Statement (56)  |  Totality (9)  |  Truth (750)  |  Value (180)

We speak erroneously of “artificial” materials, “synthetics”, and so forth. The basis for this erroneous terminology is the notion that Nature has made certain things which we call natural, and everything else is “man-made”, ergo artificial. But what one learns in chemistry is that Nature wrote all the rules of structuring; man does not invent chemical structuring rules; he only discovers the rules. All the chemist can do is find out what Nature permits, and any substances that are thus developed or discovered are inherently natural. It is very important to remember that.
From 'The Comprehensive Man', Ideas and Integrities: A Spontaneous Autobiographical Disclosure (1963), 75-76.
Science quotes on:  |  Artificial (26)  |  Basis (60)  |  Chemical (72)  |  Chemist (79)  |  Chemistry (239)  |  Development (228)  |  Discovery (591)  |  Error (230)  |  Find (248)  |  Importance (183)  |  Inherent (27)  |  Invention (283)  |  Learning (174)  |  Material (124)  |  Natural (128)  |  Nature (1029)  |  Notion (32)  |  Permit (20)  |  Remember (53)  |  Rule (135)  |  Structure (191)  |  Substance (73)  |  Synthetic (12)  |  Terminology (7)  |  Writing (72)


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)

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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



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