• Science
    Quotes
  • What's
    New
  • Science
    Stories
  • Chemistry
    Stories
  • Perpetual
    Motion
  • Newsletter
    Sign-up
  • Search
    search icon
  • Feedback
    email icon
  • Home
  • Text Menu
  • Science Store
  • News
  • Wall Calendar
  • Survey
  • Privacy
  • Terms of Use
TODAYINSCI ®

Find science on your birthday
TODAY IN SCIENCE HISTORY
Follow @todayinsci
Home > Category Index for Science Quotations > Category Index D > Category: Direct

Direct Quotes (7 quotes)

Either one or the other [analysis or synthesis] may be direct or indirect. The direct procedure is when the point of departure is known-direct synthesis in the elements of geometry. By combining at random simple truths with each other, more complicated ones are deduced from them. This is the method of discovery, the special method of inventions, contrary to popular opinion.
— André-Marie Ampère
Ampère gives this example drawn from geometry to illustrate his meaning for “direct synthesis” when deductions following from more simple, already-known theorems leads to a new discovery. In James R. Hofmann, André-Marie Ampère (1996), 159. Cites Académie des Sciences Ampère Archives, box 261.
Science quotes on:  |  Analysis (70)  |  Combination (34)  |  Complication (12)  |  Contrary (5)  |  Deduction (34)  |  Departure (3)  |  Discovery (318)  |  Element (63)  |  Geometry (58)  |  Indirect (3)  |  Invention (143)  |  Knowledge (593)  |  Method (63)  |  Opinion (72)  |  Point (22)  |  Popular (8)  |  Procedure (8)  |  Random (9)  |  Simple (14)  |  Special (19)  |  Synthesis (23)  |  Truth (399)

Experiments in geology are far more difficult than in physics and chemistry because of the greater size of the objects, commonly outside our laboratories, up to the earth itself, and also because of the fact that the geologic time scale exceeds the human time scale by a million and more times. This difference in time allows only direct observations of the actual geologic processes, the mind having to imagine what could possibly have happened in the past.
— Reinout Willem van Bemmelen
In 'The Scientific Character of Geology', The Journal of Geology (Jul 1961), 69, No. 4, 455-6.
Science quotes on:  |  Chemistry (133)  |  Difference (117)  |  Difficult (5)  |  Earth (210)  |  Experiment (346)  |  Geology (135)  |  Happen (3)  |  Imagine (5)  |  Laboratory (66)  |  Million (20)  |  Mind (236)  |  Observation (239)  |  Past (29)  |  Physics (142)  |  Possibility (59)  |  Process (79)  |  Size (16)

Human personality resembles a coral reef: a large hard/dead structure built and inhabited by tiny soft/live animals. The hard/dead part of our personality consists of habits, memories, and compulsions and will probably be explained someday by some sort of extended computer metaphor. The soft/live part of personality consists of moment-to-moment direct experience of being. This aspect of personality is familiar but somewhat ineffable and has eluded all attempts at physical explanation.
— Nick Herbert
Quoted in article 'Nick Herbert', in Gale Cengage Learning, Contemporary Authors Online (2002).
Science quotes on:  |  Animal (123)  |  Aspect (9)  |  Attempt (31)  |  Being (30)  |  Build (14)  |  Compulsion (6)  |  Computer (47)  |  Coral Reef (5)  |  Dead (9)  |  Experience (115)  |  Explanation (75)  |  Extend (4)  |  Familiar (4)  |  Habit (31)  |  Hard (12)  |  Human (131)  |  Inhabitant (5)  |  Large (17)  |  Life (379)  |  Memory (35)  |  Metaphor (7)  |  Moment (19)  |  Personality (13)  |  Physical (19)  |  Probability (53)  |  Resemblance (14)  |  Soft (3)  |  Someday (3)  |  Structure (84)  |  Tiny (7)

I belong to those theoreticians who know by direct observation what it means to make a measurement. Methinks it were better if there were more of them.
— Erwin Schrödinger
Quoted in Walter Moore, Schrödinger: Life and Thought (1989), 58-9.
Science quotes on:  |  Measurement (102)  |  Observation (239)  |  Theoretician (4)

No occupation is more worthy of an intelligent and enlightened mind, than the study of Nature and natural objects; and whether we labour to investigate the structure and function of the human system, whether we direct our attention to the classification and habits of the animal kingdom, or prosecute our researches in the more pleasing and varied field of vegetable life, we shall constantly find some new object to attract our attention, some fresh beauties to excite our imagination, and some previously undiscovered source of gratification and delight.
— Sir Joseph Paxton
In A Practical Treatise on the Cultivation of the Dahlia (1838), 1-2.
Science quotes on:  |  Animal (123)  |  Attention (30)  |  Attraction (15)  |  Beauty (71)  |  Classification (53)  |  Delight (17)  |  Enlightenment (7)  |  Excitement (14)  |  Fresh (8)  |  Function (34)  |  Gratification (7)  |  Habit (31)  |  Human (131)  |  Imagination (106)  |  Intelligence (64)  |  Investigation (71)  |  Kingdom (15)  |  Labour (21)  |  Mind (236)  |  Nature (475)  |  Occupation (26)  |  Prosecute (3)  |  Research (319)  |  Source (26)  |  Structure (84)  |  Study (117)  |  System (57)  |  Undiscovered (4)  |  Worthy (4)

Without initiation into the scientific spirit one is not in possession of the best tools humanity has so far devised for effectively directed reflection. [Without these one] fails to understand the full meaning of knowledge.
— John Dewey
Democracy and Education: an Introduction to the Philosophy of Education (1916), 223.
Science quotes on:  |  Devise (3)  |  Effective (9)  |  Fail (3)  |  Humanity (37)  |  Initiation (3)  |  Knowledge (593)  |  Possession (20)  |  Reflection (24)  |  Scientific (22)  |  Spirit (42)  |  Tool (24)  |  Understanding (195)

[In the case of research director, Willis R. Whitney, whose style was to give talented investigators as much freedom as possible, you may define "serendipity" as] the art of profiting from unexpected occurrences. When you do things in that way you get unexpected results. Then you do something else and you get unexpected results in another line, and you do that on a third line and then all of a sudden you see that one of these lines has something to do with the other. Then you make a discovery that you never could have made by going on a direct road.
— Irving Langmuir
Quoted in Guy Suits, 'Willis Rodney Whitney', National Academy of Sciences, Biographical Memoirs (1960), 355.
Science quotes on:  |  Discovery (318)  |  Freedom (36)  |  Occurrence (19)  |  Profit (12)  |  Research (319)  |  Result (103)  |  Serendipity (7)  |  Unexpected (9)  |  Willis R. Whitney (15)



Carl Sagan Thumbnail At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. -- Carl Sagan

More quotes:     Name Index    Isaac Newton    Lord Kelvin    Charles Darwin    Albert Einstein    Aristotle    Michio Kaku    Srinivasa Ramanujan    Carl Sagan    Florence Nightingale    Atomic  Bomb    Biology    Chemistry    Deforestation    Engineering

Sitewide search within all Today In Science History pages:
Custom Quotations Search - custom search within only our quotations 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 |



Please add a link from your own site or blog if you find this site useful.
Author Icon by Ian Ellis
who invites your feedback
Thank you for sharing the site with Tweets, Facebook and Stumble Upon.






Explore 100 Famous Scientist Quotes Pages

Click above to expand
- 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

Scroll above for more
Scientist Quotes Index
Today in Science History ©  1999 - 2013 by Todayinsci ®