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
Source: The Demon-Haunted World : Science as a Candle in the Dark (1995), Ch. 1 : The Most Precious Thing, p. 12
Source: The Demon-Haunted World: Science as a Candle in the Dark
“Science is, at least in part, informed worship.”
Source: The Varieties of Scientific Experience: A Personal View of the Search for God (2006)
“I've always thought an agnostic is an atheist without the courage of his convictions.”
Source: Contact
“Those at too great a distance may, I am well aware, mistake ignorance for perspective.”
Introduction (p. 7)
The Dragons of Eden (1977)
Source: Dragons of Eden: Speculations on the Evolution of Human Intelligence
Source: The Varieties of Scientific Experience: A Personal View of the Search for God
Source: The Varieties of Scientific Experience: A Personal View of the Search for God
“And you are made of a hundred trillion cells. We are, each of us, a multitude.”
Source: Cosmos
“Not explaining science seems to me perverse. When you're in love, you want to tell the world.”
"With Science on Our Side" https://www.washingtonpost.com/archive/entertainment/books/1994/01/09/with-science-on-our-side/9e5d2141-9d53-4b4b-aa0f-7a6a0faff845/, Washington Post (January 9, 1994)
Variante: Not explaining science seems to me perverse. When you're in love, you want to tell the world.
Source: The Demon-Haunted World: Science as a Candle in the Dark
17 min 40 sec
Source: Cosmos: A Personal Voyage (1990 Update), Who Speaks for Earth? [Episode 13]
Carl Sagan, author interview
PT Staff
Psychology Today
1996
January
01
http://www.psychologytoday.com/articles/199601/carl-sagan?page=3
Source: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 398
Source: The Demon-Haunted World: Science as a Candle in the Dark
Source: The Demon-Haunted World: Science as a Candle in the Dark
Source: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 53
Contexte: Once we overcome our fear of being tiny, we find ourselves on the threshold of a vast and awesome Universe that utterly dwarfs — in time, in space, and in potential — the tidy anthropocentric proscenium of our ancestors. We gaze across billions of light-years of space to view the Universe shortly after the Big Bang, and plumb the fine structure of matter. We peer down into the core of our planet, and the blazing interior of our star. We read the genetic language in which is written the diverse skills and propensities of every being on Earth. We uncover hidden chapters in the record of our origins, and with some anguish better understand our nature and prospects. We invent and refine agriculture, without which almost all of us would starve to death. We create medicines and vaccines that save the lives of billions. We communicate at the speed of light, and whip around the Earth in an hour and a half. We have sent dozens of ships to more than seventy worlds, and four spacecraft to the stars. We are right to rejoice in our accomplishments, to be proud that our species has been able to see so far, and to judge our merit in part by the very science that has so deflated our pretensions.
