„Absence of proof is not proof of absence.“

—  Michael Crichton, livro The Lost World

Fonte: The Lost World

Michael Crichton photo
Michael Crichton
1942 - 2008

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Epifanio de los Santos photo

„Lazy geniuses! There are no such men. Laziness and genius never go hand in hand. Each excludes the other. Laziness is the best proof of the absence of genius.“

—  Epifanio de los Santos Filipino politician 1871 - 1928

As quoted in “Don Pañong – Genius" by A.V.H. Hartendorp in Philippine Magazine (September 1929), p. 211.

Martin J. Rees photo

„Absence of evidence is not evidence of absence.“

—  Martin J. Rees cosmologist, astrophysicist, Astronomer Royal, Master of Trinity College, President of the Royal Society 1942

As quoted in Project Cyclops: A Design Study of a System for Detecting Extraterrestrial Intelligent Life (1971) http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730010095_1973010095.pdf by Bernard M. Oliver, and John Billingham, Ch. 2 : Life in the Universe, p. 3 ; this has frequently misattributed to Carl Sagan, who quoted it in some of his presentations.

Carl Sagan photo

„Absence of evidence is not evidence of absence.“

—  Carl Sagan, livro Cosmos

Martin Rees — Sagan refers to this quote in The Demon-Haunted World (1995) (see above)
Fonte: Cosmos

Neal A. Maxwell photo
Anthony de Mello photo
Etty Hillesum photo
Homér photo

„The proof of battle is action, proof of words, debate.“

—  Homér, Iliad

XVI. 630 (tr. Robert Fagles).
Iliad (c. 750 BC)
Original: (el) Ἐν γὰρ χερσὶ τέλος πολέμου, ἐπέων δ' ἐνὶ βουλῇ.

Eugéne Ionesco photo

„The absence of ideology in a work does not mean an absence of ideas; on the contrary it fertilizes them.“

—  Eugéne Ionesco Romanian playwright 1909 - 1994

"A Reply to Kenneth Tynan: The Playwright's Role" in The Observer (29 June 1958)
Contexto: Every work of art (unless it is a psuedo-intellectualist work, a work already comprised in some ideology that it merely illustrates, as with Brecht) is outside ideology, is not reducible to ideology. Ideology circumscribes without penetrating it. The absence of ideology in a work does not mean an absence of ideas; on the contrary it fertilizes them.

Carl Friedrich Gauss photo

„I mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where ½ proof = 0, and it is demanded for proof that every doubt becomes impossible.“

—  Carl Friedrich Gauss German mathematician and physical scientist 1777 - 1855

In a letter to Heinrich Wilhelm Matthias Olbers (14 May 1826), defending Chevalier d'Angos against presumption of guilt (by Johann Franz Encke and others), of having falsely claimed to have discovered a comet in 1784; as quoted in Calculus Gems (1992) by George F. Simmons

Ashley Montagu photo

„The scientist believes in proof without certainty, the bigot in certainty without proof.“

—  Ashley Montagu British-American anthropologist 1905 - 1999

The second sentence is often misquoted as “Science has proof without any certainty. Creationists have certainty without any proof.” or “Religion gives us certainty without proof; science gives us proof without certainty.”
Contexto: Bigotry and science can have no communication with each other, for science begins where bigotry and absolute certainty end. The scientist believes in proof without certainty, the bigot in certainty without proof. Let us never forget that tyranny most often springs from a fanatical faith in the absoluteness of one’s beliefs.

Emil M. Cioran photo

„Eternity is absence.“

—  Emil M. Cioran Romanian philosopher and essayist 1911 - 1995

Drawn and Quartered (1983)

Peter F. Drucker photo
John Berger photo
Wilhelm Reich photo

„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“