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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.

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
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
Sir Gavin de Beer
Frank Debenham
James Dunwoody Brownson De Bow
Peter Debye
Lyon Sprague DeCamp
Pierre Teilhard de Chardin
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
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 John Huffam Dickens
Emily Elizabeth Dickinson
Paul Dickson
Dictionary
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
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
Finley Peter Dunne
Albrecht Dürer
Émile Durkheim
Saul Dushman
Alexander Logie Du Toit
Clarence Edward Dutton
George-Louis Duvernoy
Sir Frank Dyson
Freeman Dyson
Sir James Dyson

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

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