Carl Sagan citations célèbres
“Des affirmations extraordinaires nécessitent des preuves extraordinaires.”
Extraordinary claims require extraordinary evidence.
en
Citation presque identique à Extraordinary claims require extraordinary proof. de Marcello Truzzi, co-fondateur du Committee for Skeptical Inquiry.
Cosmos, 1980
[In Pseudoscience] hypothesis are often framed precisely so that they are invulnerable to any experiment that offers a prospect of disproof, so even in principle they cannot be invalidated. Practitioners are defensive and wary. Skeptical scrutiny is opposed. When the pseudoscientific hypothesis fails to catch fire with scientists, conspiracies to suppress it are deduced.
en
The Demon-Haunted World (1995)
“Tu es fait de cent mille milliards de cellules. Nous sommes, chacun, une multitude.”
You are made of a hundred trillion cells. We are, each of us, a multitude.
en
Cosmos, 1980
Sometimes [Pseudoscience] is a kind of halfway house between old religion and new science, mistrusted by both.
en
The Demon-Haunted World (1995)
We are like butterflies who flutter for a day and think it is forever.
en
Cosmos, 1980
“99 pour cent de l'atmosphère de la Terre est d'origine biologique. Le ciel est fait de vie.”
99 per cent of the Earth's atmosphere is of biological origin. The sky is made by life.
en
Cosmos, 1980
Carl Sagan: Citations en anglais
“Humans are very good at dreaming, although you’d never know it from your television.”
Source: Contact (1985), Chapter 20 (p. 359)
As quoted in "Scientists & Their Gods" in U.S. News & World Report Vol. 111 (1991)
The Varieties of Scientific Experience: A Personal View of the Search for God (2006)
Talk of the Nation (3 May 1996)
56 min 20 sec
Cosmos: A Personal Voyage (1990 Update), The Shores of the Cosmic Ocean [Episode 1]
The Varieties of Scientific Experience: A Personal View of the Search for God (2006)
36 min 20 sec
Cosmos: A Personal Voyage (1990 Update), Who Speaks for Earth? [Episode 13]
6 min 10 sec
Cosmos: A Personal Voyage (1990 Update), Who Speaks for Earth? [Episode 13]
Contexte: Unlike the La Pérouse expedition the Conquistadors sought not knowledge but Gold. They used their superior weapons to loot and murder, in their madness they obliterated a civilisation. In the name of piety, in a mockery of their religion, the Spaniards utterly destroyed a society with an Art, Astronomy and Architecture the equal of anything in Europe. We revile the Conquistadors for their cruelty and shortsightedness, for choosing death. We admire La Pérouse and the Tlingit for their courage and wisdom, for choosing life. The choice is with us still, but the civilisation now in jeopardy is all humanity. As the ancient myth makers knew we're children equally of the earth and the sky. In our tenure on this planet we've accumulated dangerous evolutionary baggage, propensities for aggression and ritual, submission to leaders, hostility to outsiders, all of which puts our survival in some doubt. But we've also acquired compassion for others, love for our children, a desire to learn from history and experience and a great soaring passionate intelligence, the clear tools for our continued survival and prosperity. Which aspects of our nature will prevail is uncertain, particularly when our visions and prospects are bound to one small part of the small planet Earth. But up there in the Cosmos an inescapable perspective awaits. National boundaries are not evident when we view the Earth from space. Fanatical ethnic or religious or national identifications are a little difficult to support when we see our Earth as a fragile blue crescent fading to become an inconspicuous point of light against the bastion and the citadel of the stars. There are not yet obvious signs of extraterrestrial intelligence and this makes us wonder whether civilisations like ours rush inevitably headlong into self-destruction.
Charlie Rose: An Interview with Carl Sagan http://www.charlierose.com/guest/view/4553, May 27, 1996.
Cited in Tim Flannery, Atmosphere of Hope. Solutions to the Climate Crisis, Penguin Books, 2015, pages 162 ISBN 9780141981048.
Others
Source: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 227
“I think people in power have a vested interest to oppose critical thinking.”
http://www.sciencefriday.com/segments/carl-sagan-science-is-a-way-of-thinking/
Carl Sagan: 'Science Is a Way of Thinking', Science Friday interview from May 1996
27 December 2013
The Varieties of Scientific Experience: A Personal View of the Search for God (2006)
Keynote address at CSICOP conference (1987), as quoted in Do Science and the Bible Conflict? (2003) by Judson Poling, p. 30
Planetary Exploration (University of Oregon Books, Eugene, Oregon, 1970), page 15
Source: The Demon-Haunted World : Science as a Candle in the Dark (1995), Ch. 25 : Real Patriots Ask Questions
“Other things being equal, it is better to be smart than to be stupid.”
Source: Cosmos (1980), p. 284
“Jingoistic rhetoric and puerile self-congratulatory nationalism.”
Source: Contact (1985), Chapter 11 (p. 181)
“Human beings have a demonstrated talent for self-deception when their emotions are stirred.”
Source: Cosmos (1980), p. 135
The Varieties of Scientific Experience: A Personal View of the Search for God (2006)
http://www.sciencefriday.com/segments/carl-sagan-science-is-a-way-of-thinking/
Carl Sagan: 'Science Is a Way of Thinking', Science Friday interview from May 1996
27 December 2013
Source: Billions and Billions: Thoughts on Life and Death at the Brink of the Millenium (1997), Chapter 14, "The Common Enemy".
