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Who said: “The path towards sustainable energy sources will be long and sometimes difficult. But America cannot resist this transition, we must lead it... That is how we will preserve our planet, commanded to our care by God. That’s what will lend meaning to the creed our fathers once declared.”
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Home > Dictionary of Science Quotations > Names Index D

Scientist Quotations Index for Initial D

This dictionary includes science quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists plus pioneers in medicine, science events and technology.

A scientist quotation page heading may include a link to a short biography of the scientist or description of the event corresponding to a day in Science History.

John Adolphus Bernard Dahlgren
Albert Dalcq
Jean le Rond D'Alembert
Sir Henry Dale
Salvador Dali
Damon Dalrymple
John Dalton
Mary Daly
Reginald Aldworth Daly
Captain William Dampier
Sir William Cecil Dampier
Charles Loomis Dana
James Dwight Dana
Richard Henry Dana, Jr.
Jean Cardinal Daniélou
Dante Alighieri
George Bernhard Dantzig
Tobias Danzig
Cyril Dean Darlington
David Darling
Charles Darrow
Clarence Darrow
Karl Kelchner Darrow
Raymond A. Dart
Charles Darwin
Sir Charles Galton Darwin
Erasmus Darwin
Francis Darwin
René Daumal
Thomas Davenport
William Leslie Davidson
John Davies
P.C.W. Davies
Robertson Davies
Leonardo da Vinci
Clinton Joseph Davisson
Henry ("Hank") T. Davis
Kingsley Davis
William Morris Davis
Edmund Davy
Sir Humphry Davy
John Davy
Richard Dawkins
Sir John William Dawson
Michael Ellis DeBakey
Sir Gavin de Beer
Frank Debenham
James Dunwoody Brownson De Bow
Peter Debye
Lyon Sprague DeCamp
Richard Dedekind
Braswell D. Deen, Jr.
John Dee
Kenneth Deffeyes
Joseph-Marie de Gérando
Aaron P. De Geus
Henry Thomas De la Beche
John Delaney
Max Ludwig Henning Delbrück
Max Delbrück
François-Alexandre-Nicolas-Cheri Delsarte
Jean André Deluc
Cecil B De Mille
Democritus of Abdera
Abraham DeMoivre
Abraham De Moivre
Augustus De Morgan
Daniel C. Dennett
Nigel Forbes Dennis
Chauncey Depew
Christine de Pizan
Thomas De Quincey
René Descartes
Adrian J. Desmond
Friedrich Dessauer
Alex Dessler
Frank C. DeSua
William C. DeVries
Sir James Dewar
Michael J. S. Dewar
Bradley Dewey
John Dewey
Thomas Michael (T. Michael) Dexter
Félix d'Hérelle
Charles Dickens
Emily Elizabeth Dickinson
Paul Dickson
Denis Diderot
Jean Dieudonné
Eduard Jan Dijksterhuis
Edsjer W. Dijkstra
Sayyid Jamal ad- Din
Diogenes Laërtius
Paul A. M. Dirac
Walter Elias (Walt) Disney
Benjamin Disraeli
Isaac Disraeli
Carl Djerassi
J. Frank Dobie
Theodosius Dobzhansky
Sir Richard Doll
Ian Donald
John Donne
George A. Dorsey
Nathan Washington Dougherty
David Douglas
Dame Mary Douglas
William O(rville) Douglas
Sir Arthur Conan Doyle
Frank Drake
John William Draper
Charles Richard Drew
Richard G. Drew
John P. Droop
Peter Drucker
Henry Drummond
Sir Alan Drury
Hugh L. Dryden
John Dryden
Charles R. Dryer
Charles R. Drysdale
Eugène Dubois
René Dubos
Lee Alvin DuBridge
Guillaume-Benjamin-Amand Duchenne
Pierre Duhem
Dianne Dumanoski
Jean-Baptiste-André Dumas
David Duncan
Robert Kennedy Duncan
Finley Peter Dunne
A. Hunter Dupree
Albrecht Dürer
Émile Durkheim
Saul Dushman
Alexander Logie Du Toit
Clarence Edward Dutton
George-Louis Duvernoy
Sir Frank Dyson
Freeman Dyson
Sir James Dyson

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)
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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 |

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- 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

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