Scientist Quotations Index for Initial A
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.
Antoine-Thomson d' Abbadie
Henry Abbey
Cleveland Abbe
Edwin Abbott Abbott
William O. Abbott
C. G. Abbot
Inshirah Abdur-Ra'uf
Peter Abelard
Philip Hauge Abelson
John Jacob Abel
Niels Henrik Abel
John Abernethy
Swami Abhedananda
Karl Abraham
Sir Adolf Abrams
Goodman Ace
Franz Karl Achard
Russell Lincoln Ackoff
Lord John Emerich Edward Dalberg Acton
Cecil Adams
Douglas Noel Adams
Henry Brooks Adams
John Adams
Mike Adams
Roger Adams
Samuel Hopkins Adams
Scott Adams
Joseph Addison
Thomas Addis
Homer Burton Adkins
Alfred Adler
Alfred W. Adler
Francis Heed Adler
Freda Schaffer Adler
Irving Adler
Marty Adler
Theodor Wiesengrund Adorno
Baron Edgar Douglas Adrian
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Franz (Maria Ulrich Theodor Hoch) Aepinus
Aeschylus
Aetius of Antioch
Louis Agassiz
Agathemerus
Derek Victor Ager
Georgius Agricola
Heinrich Cornelius Agrippa
Conrad Aiken
Sir George Biddell Airy
Mark Akenside
Leon Battista Alberti
Saint Magnus Albertus
Fuller Albright
Alcmaeon
Edwin Eugene Aldrin, Jr.
Czar Alexander, III
Alexander of Tralles
Ernst F.W. Alexanderson
Alexander the Great
Zhores Ivanovich Alferov
Alfonso X of Castile
Hannes Alfvén
W. R. Alger
Alhazan
Muhammad Ali
Sir Thomas Clifford Allbutt
Warder Clyde Allee
Claude J. Allègre
David Elliston Allen
Ethan Allen
Woody Allen
David B. Allman
Gordon Allport
Stewart Alsop, Jr.
Luis W. Alvarez
Walter Alvarez
Saint Ambrose
American Cancer Society
Fisher Ames
Henri-Frédéric Amiel
André-Marie Ampère
Anaxagoras
Anaximander
Anaximenes
Sir (William) Eric Kinloch Anderson
John Allan Dalrymple Anderson
Philip W. Anderson
Poul (William) Anderson
Terry Anderson
Herbert George Andrewartha
Sir Christopher Howard Andrewes
Frederick William Andrewes
Roy Chapman Andrews
Thomas Andrews
William S. Anglin
Thomas Annandale
Mary Anning
Anonymous
Robert Anthony
Antiphanes
John Apley
Guillaume Apollinaire
Apollonius
Saint Thomas Aquinas
François Arago
Michael A. Arbib
Petronius Arbiter
John Arbuthnot
Archilochus
Archimedes
Robert Ardrey
Giovanni Arduino
Aretaeus of Cappadocia
Émile Argand
Aristarchus
Aristippus The Cyrenaic
Aristophanes
Aristotle
Sir Richard Arkwright
Edwin Armstrong
Henry Edward Armstrong
John Armstrong
Neil Armstrong
Sir William George Armstrong
Rudolf Arnheim
Friedrich Arnold
Matthew Arnold
Thomas Arnold
Svante Arrhenius
Ar-Rumi
Antonin Artaud
Emil Artin
Asclepiades
Roger Asham
Sir Eric Ashby
Richard Alan John Asher
Isaac Asimov
Joseph Aspdin
Ezras A. Asratyan
William Thomas Astbury
Francis William Aston
Dana Winslow Atchley
Peter William Atkins
John Light Atlee
Sir David Attenborough
Wilbur Olin Atwater
John Aubrey
Wystan Hugh Auden
John James Audubon
Josef Leopold Auenbrugger
Norman R. Augustine
Saint Aurelius Augustinus Augustine
Marcus Antoninus Aurelius
Jane Austen
Oswald Avery
Avicenna
Count of Quaregna Amedeo Avogadro
Alfred Jules (A.J.) Ayer
Washington O. Ayer
Wallace Ruddell (W.R.) Aykroyd
Pam Ayres
William Edward Ayrton
Henry Abbey
Cleveland Abbe
Edwin Abbott Abbott
William O. Abbott
C. G. Abbot
Inshirah Abdur-Ra'uf
Peter Abelard
Philip Hauge Abelson
John Jacob Abel
Niels Henrik Abel
John Abernethy
Swami Abhedananda
Karl Abraham
Sir Adolf Abrams
Goodman Ace
Franz Karl Achard
Russell Lincoln Ackoff
Lord John Emerich Edward Dalberg Acton
Cecil Adams
Douglas Noel Adams
Henry Brooks Adams
John Adams
Mike Adams
Roger Adams
Samuel Hopkins Adams
Scott Adams
Joseph Addison
Thomas Addis
Homer Burton Adkins
Alfred Adler
Alfred W. Adler
Francis Heed Adler
Freda Schaffer Adler
Irving Adler
Marty Adler
Theodor Wiesengrund Adorno
Baron Edgar Douglas Adrian
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Franz (Maria Ulrich Theodor Hoch) Aepinus
Aeschylus
Aetius of Antioch
Louis Agassiz
Agathemerus
Derek Victor Ager
Georgius Agricola
Heinrich Cornelius Agrippa
Conrad Aiken
Sir George Biddell Airy
Mark Akenside
Leon Battista Alberti
Saint Magnus Albertus
Fuller Albright
Alcmaeon
Edwin Eugene Aldrin, Jr.
Czar Alexander, III
Alexander of Tralles
Ernst F.W. Alexanderson
Alexander the Great
Zhores Ivanovich Alferov
Alfonso X of Castile
Hannes Alfvén
W. R. Alger
Alhazan
Muhammad Ali
Sir Thomas Clifford Allbutt
Warder Clyde Allee
Claude J. Allègre
David Elliston Allen
Ethan Allen
Woody Allen
David B. Allman
Gordon Allport
Stewart Alsop, Jr.
Luis W. Alvarez
Walter Alvarez
Saint Ambrose
American Cancer Society
Fisher Ames
Henri-Frédéric Amiel
André-Marie Ampère
Anaxagoras
Anaximander
Anaximenes
Sir (William) Eric Kinloch Anderson
John Allan Dalrymple Anderson
Philip W. Anderson
Poul (William) Anderson
Terry Anderson
Herbert George Andrewartha
Sir Christopher Howard Andrewes
Frederick William Andrewes
Roy Chapman Andrews
Thomas Andrews
William S. Anglin
Thomas Annandale
Mary Anning
Anonymous
Robert Anthony
Antiphanes
John Apley
Guillaume Apollinaire
Apollonius
Saint Thomas Aquinas
François Arago
Michael A. Arbib
Petronius Arbiter
John Arbuthnot
Archilochus
Archimedes
Robert Ardrey
Giovanni Arduino
Aretaeus of Cappadocia
Émile Argand
Aristarchus
Aristippus The Cyrenaic
Aristophanes
Aristotle
Sir Richard Arkwright
Edwin Armstrong
Henry Edward Armstrong
John Armstrong
Neil Armstrong
Sir William George Armstrong
Rudolf Arnheim
Friedrich Arnold
Matthew Arnold
Thomas Arnold
Svante Arrhenius
Ar-Rumi
Antonin Artaud
Emil Artin
Asclepiades
Roger Asham
Sir Eric Ashby
Richard Alan John Asher
Isaac Asimov
Joseph Aspdin
Ezras A. Asratyan
William Thomas Astbury
Francis William Aston
Dana Winslow Atchley
Peter William Atkins
John Light Atlee
Sir David Attenborough
Wilbur Olin Atwater
John Aubrey
Wystan Hugh Auden
John James Audubon
Josef Leopold Auenbrugger
Norman R. Augustine
Saint Aurelius Augustinus Augustine
Marcus Antoninus Aurelius
Jane Austen
Oswald Avery
Avicenna
Count of Quaregna Amedeo Avogadro
Alfred Jules (A.J.) Ayer
Washington O. Ayer
Wallace Ruddell (W.R.) Aykroyd
Pam Ayres
William Edward Ayrton
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