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Find quotes, thinkers, and ideas across centuries of human thought.
Thinkers
60 foundAlbert Einstein
1879 – 1955
362 quotes
David Attenborough
1926
57 quotes
Carl Sagan
1934 – 1996
270 quotes
Richard Feynman
1918 – 1988
190 quotes
Charles Darwin
1758 – 1778
133 quotes
Richard Dawkins
1941
242 quotes
Galileo Galilei
1564 – 1642
68 quotes

Warren Farrell
1943
586 quotes
Stephen Jay Gould
1941 – 2002
272 quotes
Isaac Asimov
1920 – 1992
243 quotes
Paulo Coelho
1947 – 1985
242 quotes
Georg Christoph Lichtenberg
1786 – 1845
143 quotes
Jerry Coyne
1949
136 quotes
Thomas Henry Huxley
1825 – 1895
130 quotes
Kim Stanley Robinson
1952
125 quotes

Aldo Leopold
1887 – 1948
118 quotes
Sam Harris
1967
114 quotes
Gregory Benford
1941
108 quotes
Publilius Syrus
95 quotes

Stephen Hawking
1942 – 2018
94 quotes

Karl Kraus
1874 – 1936
86 quotes
Brian Campbell Vickery
1918 – 2009
83 quotes
Peter Farb
1929 – 1980
81 quotes
Freeman Dyson
1923 – 2020
80 quotes

Michael Parenti
1933 – 2026
79 quotes

A. James Gregor
1929 – 2019
74 quotes
E. O. Wilson
1929 – 2021
74 quotes
Bill Nye
73 quotes

Daniel Levitin
1957
71 quotes
Ken Ham
1951
68 quotes
Russell L. Ackoff
1919 – 2009
67 quotes
Tom Clancy
1947 – 2013
65 quotes
Edsger W. Dijkstra
1930 – 2002
63 quotes
Arthur Eddington
1882 – 1944
61 quotes
Ludwig von Bertalanffy
1901 – 1972
59 quotes
Rudolph Rummel
1932 – 2014
56 quotes

James Jeans
1877 – 1946
54 quotes
Viktor Schauberger
1885 – 1958
53 quotes
Lancelot Law Whyte
1896 – 1972
53 quotes
Erwin Schrödinger
1887 – 1961
52 quotes
Richard Bergland
52 quotes
Neil deGrasse Tyson
1958
51 quotes

John D. Barrow
1952 – 2020
51 quotes
Adolphe Quetelet
1796 – 1874
49 quotes
Jerzy Vetulani
1976 – 2006
49 quotes
Steven Weinberg
1933 – 2021
48 quotes
Gregory Bateson
1904 – 1980
48 quotes
Carl Friedrich Gauss
1777 – 1855
48 quotes

John Napier
1550 – 1617
48 quotes
Theodor Mommsen
1817 – 1903
45 quotes
Alan O. Ebenstein
1959
44 quotes
Johannes Kepler
1571 – 1630
43 quotes
Giordano Bruno
1548 – 1600
43 quotes
Fritjof Capra
1939
42 quotes
Paul Davies
1946
42 quotes
Jef Raskin
1943 – 2005
42 quotes
Ferdinand Foch
1851 – 1929
41 quotes
Kerry Jackson
41 quotes
Anthony Watts
1958
41 quotes

Frank Wilczek
1951
41 quotes
Quotes
60 found"Everything should be made as simple as possible, but not simpler."
"The most simple picture one can form about the creation of an empirical science is along the lines of an inductive method. Individual facts are selected and grouped together such that their lawful con…"
"Noch eine Art Anwendung des Relativitätsprinzips zum Ergötzen des Lesers: Heute werde ich in Deutschland als "deutscher Gelehrter", in England als "Schweizer Jude" bezeichnet; sollte ich aber einst in…"
"Liebe Mutter! Heute eine freudige Nachricht. H. A. Lorentz hat mir telegraphiert, dass die englischen Expeditionen die Lichtablenkung an der Sonne wirklich bewiesen haben."
"Now, there has been the view that ... if there is nothing special about us in space then maybe there is something special about us in time. ... To me, the principal trouble with this idea is that 99.9…"
"I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue. But much as I want to believe that, and despite the ancient and worldwide …"
"It seems to me what is called for is an exquisite balance between two conflicting needs: the most skeptical scrutiny of all hypotheses that are served up to us and at the same time a great openness to…"
"Imagine, a room, awash in gasoline. And there are two implacable enemies in that room. One of them has 9,000 matches. The other has 7,000 matches. Each of them is concerned about who's ahead, who's st…"
"It is easy to create an interstellar radio message which can be recognized as emanating unambiguously from intelligent beings. A modulated signal (‘beep,’ ‘beep-beep,’ . . . ) comprising the numbers 1…"
"All right. I already see you turning off. I can see you say you don't understand me. You can't understand that it could be chance. "I don't like it!" Tough! I don't like it either, but that's the way …"
"The first principle is that you must not fool yourself — and you are the easiest person to fool."
"We've learned from experience that the truth will out. Other experimenters will repeat your experiment and find out whether you were wrong or right. Nature's phenomena will agree or they'll disagree w…"
"I, therefore, did learn a lesson: The female mind is capable of understanding analytic geometry. Those people who have for years been insisting (in the face of all obvious evidence to the contrary) th…"
"Hell, if I could explain it to the average person, it wouldn't have been worth the Nobel prize."
"The real problem in speech is not precise language. The problem is clear language. The desire is to have the idea clearly communicated to the other person. It is only necessary to be precise when ther…"
"PrinciplesYou can't say A is made of Bor vice versa.All mass is interaction."
"In the year 1837, a short paper was read by me before the Geological Society of London, "On the Formation of Mould," in which it was shown that small fragments of burnt marl, cinders, &c., which had b…"
"[T]he young and the old of widely different races, both with man and animals, express the same state of mind by the same movements."
"Whence do you have it that the terrestrial globe is so heavy? For my part, either I do not know what heaviness is, or the terrestrial globe is neither heavy nor light, as likewise all other globes of …"
"Philosophy is written in this grand book, which stands continually open before our eyes (I say the 'Universe'), but can not be understood without first learning to comprehend the language and know the…"
"I would say here something that was heard from an ecclesiastic of the most eminent degree [probably Caesar Baronius]: "The intention of the Holy Ghost is to teach us how one goes to heaven, not how he…"
"I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forgo their use and by some other means to give us knowledge which we can at…"
"Nature … is inexorable and immutable; she never transgresses the laws imposed upon her, or cares a whit whether her abstruse reasons and methods of operation are understandable to men. For that reason…"
"To this end they make a shield of their hypocritical zeal for religion. They go about invoking the Bible, which they would have minister to their deceitful purposes. Contrary to the sense of the Bible…"
""It seems to me that it was well said by Madama Serenissima, and insisted on by your reverence, that the Holy Scripture cannot err, and that the decrees therein contained are absolutely true and invio…"
"Quòd tertio loca à nobis fuit obſeruatum, eſt ipſiuſmet LACTEI Circuli eſſentia, ſeu materies, quam Perſpicilli beneficio adeò ad ſenſum licet intueri, vt & altercationes omnes, quæ per tot ſæcula Phi…"
"Ordinarily, the propagation of Hinduism occurs in approximately the following way. ... Native deities are rebaptized with the names of Hindu gods and goddesses. ... Some Brahman is requested to provid…"
"For the Confucian, the specialistic expert could not be raised to truly positive dignity, no mater what his social usefulness. The decisive factor was that the "cultured man" (gentleman) was "not a to…"
"No one any longer knows who will live in this steel-hard casing and whether entirely new prophets or a mighty rebirth of ancient ideas and ideals will stand at the end of this prodigious development. …"
""Rationalism" is a historical concept that contains within itself a world of contradictions."
"Owing to the incapacity of the higher price-rate to appeal to the "acquisitive sense," it would appear altogether plausible to attempt to do so by utilizing the opposite strategy: by decreasing piece-…"
"Modern capitalism has as little use for liberum arbitrium [undisciplined] persons as laborers as it has for the businessman fully without scruples in the running of his company."
"This striving becomes understood completely as an end in itself—to such an extent that it appears as fully outside the normal course of affairs and simply irrational, at least when viewed from the per…"
"S’il est terrifiant de penser que la vie puisse être à la merci de la multiplication de ces infiniment petits, il est consolant aussi d’espérer que la science ne restera pas toujours impuissante devan…"
"Maintenant, messieurs, il y aurait un beau sujet à traiter : c’est celui du rôle, dans l’économie générale de la création, de quelques-uns de ces petits êtres qui sont les agents de la fermentation, l…"
"Et par conséquent, messieurs pourrais-je dire, en vous montrant ce liquide : J’ai pris dans l’immensité de la création ma goutte d’eau, et je l’ai prise toute pleine de la gelée féconde, c’est-à-dire,…"
"Comprenez-vous maintenant le lien qui existe entre la question des générations spontanées et ces grands problèmes que j'ai énumérés en commençant? Mais, messieurs, dans un pareil sujet, assez de poési…"
"Le premier regard de l'homme jeté sur l'univers n'y découvre que variété, diversité, multiplicité des phénomènes. Que ce regard soit illuminé par la science, — par la science qui rapproche l'homme de …"
"Young men, have confidence in those powerful and safe methods, of which we do not yet know all the secrets. And, whatever your career may be, do not let yourselves become tainted by a deprecating and …"
"Dans les champs de l'observation le hasard ne favorise que les esprits préparés."
"I am on the edge of mysteries and the veil is getting thinner and thinner."
"Thus it seems that even God is bound by the uncertainty principle, and can not know both the position, and the speed, of a particle. So God does play dice with the universe. All the evidence points to…"