Carl Sagan: Frases en inglés (página 14)

Carl Sagan era astrofísico, cosmólogo y divulgador científico estadounidense. Frases en inglés.
Carl Sagan: 436   frases 28   Me gusta

“Jingoistic rhetoric and puerile self-congratulatory nationalism.”

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Carl Sagan libro Contact

Fuente: Contact (1985), Chapter 11 (p. 181)

“You see, the religious people — most of them — really think this planet is an experiment. That’s what their beliefs come down to. Some god or other is always fixing and poking, messing around with tradesmen’s wives, giving tablets on mountains, commanding you to mutilate your children, telling people what words they can say and what words they can’t say, making people feel guilty about enjoying themselves, and like that. Why can’t the gods leave well enough alone? All this intervention speaks of incompetence. If God didn’t want Lot’s wife to look back, why didn’t he make her obedient, so she’d do what her husband told her? Or if he hadn’t made Lot such a shithead, maybe she would’ve listened to him more. If God is omnipotent and omniscient, why didn’t he start the universe out in the first place so it would come out the way he wants? Why’s he constantly repairing and complaining? No, there’s one thing the Bible makes clear: The biblical God is a sloppy manufacturer. He’s not good at design, he’s not good at execution. He’d be out of business if there was any competition.”

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Carl Sagan libro Contact

Fuente: Contact (1985), Chapter 16 (p. 285)

“The Platonists and their Christian successors held the peculiar notion that the Earth was tainted and somehow nasty, while the heavens were perfect and divine. The fundamental idea that the Earth is a planet, that we are citizens of the Universe, was rejected and forgotten.”

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Carl Sagan libro Cosmos

Fuente: Cosmos (1980), p. 188

“Human beings have a demonstrated talent for self-deception when their emotions are stirred.”

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Carl Sagan libro Cosmos

Fuente: Cosmos (1980), p. 135

“I wish to propose a doctrine which may, I fear, appear wildly paradoxical and subversive. The doctrine in question is this: that it is undesirable to believe a proposition when there is no ground whatever for supposing it true. I must, of course, admit that if such an opinion became common it would completely transform our social life and our political system; since both are at present faultless, this must weigh against it.”

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Carl Sagan libro Contact

Fuente: Contact (1985), Chapter 2 (p. 15, quoting Bertrand Russell)

“If a marker were to be erected today, it might read, in homage to his scientific courage: “He preferred the hard truth to his dearest illusions.””

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Carl Sagan libro Cosmos

On the character of Johannes Kepler, p. 67
Cosmos (1980)

“At birth all of us imagine that we are the universe, and we don't distinguish the boundaries between ourselves and those around us. …in some social situations, there is the sense that we are central, important. …there was a natural projection of those attitudes upon the universe.”

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Carl Sagan

The Varieties of Scientific Experience: A Personal View of the Search for God (2006)

“Something dreadful happens to students between first and twelfth grades, and it's not just puberty.”

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Carl Sagan

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

“A central lesson of science is that to understand complex issues (or even simple ones), we must try to free our minds of dogma and to guarantee the freedom to publish, to contradict, and to experiment. Arguments from authority are unacceptable.”

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Carl Sagan

Fuente: Billions and Billions: Thoughts on Life and Death at the Brink of the Millenium (1997), Chapter 14, "The Common Enemy".

“Relativity does set limits on what humans can ultimately do. But the universe is not required to be in perfect harmony with human aspirations.”

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Carl Sagan libro Cosmos

Fuente: Cosmos (1980), p. 201

“Humans may crave absolute certainty; they may aspire to it; they may pretend, as partisans of certain religions do, to have attained it. But the history of science — by far the most successful claim to knowledge accessible to humans — teaches that the most we can hope for is successive improvement in our understanding, learning from our mistakes, an asymptotic approach to the Universe, but with the proviso that absolute certainty will always elude us.”

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Carl Sagan

Fuente: The Demon-Haunted World : Science as a Candle in the Dark (1995), Ch. 2 : Science and Hope, p. 28

“It took the Church until 1832 to remove Galileo's work from its list of books which Catholics were forbidden to read at the risk of dire punishment of their immortal souls.”

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Carl Sagan libro Un punto azul pálido

Fuente: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 43

“Appeal to ignorance — the claim that whatever has not been proved false must be true, and vice versa (e. g. There is no compelling evidence that UFOs are not visiting the Earth; therefore UFOs exist — and there is intelligent life elsewhere in the universe. Or: There may be seventy kazillion other worlds, but not one is known to have the moral advancement of the Earth, so we're still central to the Universe.) This impatience with ambiguity can be criticized in the phrase: absence of evidence is not evidence of absence.”

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Carl Sagan

Referring to an aphorism of Martin Rees. (see Misattributed below)
Fuente: The Demon-Haunted World : Science as a Candle in the Dark (1995), Ch. 12 : The Fine Art of Baloney Detection, p. 221

“Ann Druyan suggests an experiment: Look back again at the pale blue dot of the preceding chapter. Take a good long look at it. Stare at the dot for any length of time and then try to convince yourself that God created the whole Universe for one of the 10 million or so species of life that inhabit that speck of dust. Now take it a step further: Imagine that everything was made just for a single shade of that species, or gender, or ethnic or religious subdivision. If this doesn't strike you as unlikely, pick another dot. Imagine it to be inhabited by a different form of intelligent life. They, too, cherish the notion of a God who has created everything for their benefit. How seriously do you take their claim?”

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Carl Sagan libro Un punto azul pálido

Fuente: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 11

“That it will never come again
Is what makes life so sweet.”

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Carl Sagan libro Contact

Quoting Emily Dickinson; The Poems of Emily Dickinson http://books.google.gr/books?id=LoH2SXEnnoEC&dq=, 3:1171, no. 1741
Fuente: Contact (1985), Chapter 22 (p. 393)

“We humans appear on the cosmic calendar so recently that our recorded history occupies only the last few seconds of the last minute of December 31st.”

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Carl Sagan

57 min 0 sec
Cosmos: A Personal Voyage (1990 Update), The Shores of the Cosmic Ocean [Episode 1]

“I never said it. Honest. Oh, I said there are maybe 100 billion galaxies and 10 billion trillion stars. It's hard to talk about the Cosmos without using big numbers. I said 'billion' many times on the Cosmos television series, which was seen by a great many people. But I never said 'billions and billions.' For one thing, it's imprecise. How many billions are 'billions and billions'? A few billion? Twenty billion? A hundred billion? 'Billions and billions' is pretty vague… For a while, out of childish pique, I wouldn't utter the phrase, even when asked to. But I've gotten over that. So, for the record, here it goes: 'Billions and billions.”

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Carl Sagan

List of misquotations
Billions and Billions: Thoughts on Life and Death at the Brink of the Millenium (1997)

“Our intelligence and our technology have given us the power to affect the climate. How will we use this power? Are we willing to tolerate ignorance and complacency in matters that affect the entire human family? Do we value short-term advantages above the welfare of the Earth? Or will we think on longer time scales, with concern for our children and our grandchildren, to understand and protect the complex life-support systems of our planet? The Earth is a tiny and fragile world. It needs to be cherished.”

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Carl Sagan libro Cosmos

Fuente: Cosmos (1980), p. 103

“If we like them, they’re freedom fighters, she thought. If we don’t like them, they’re terrorists. In the unlikely case we can’t make up our minds, they’re temporarily only guerrillas.”

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Carl Sagan libro Contact

Fuente: Contact (1985), Chapter 3 (p. 55)

“Cannabis also enhances the enjoyment of sex — on the one hand it gives an exquisite sensitivity, but on the other hand it postpones orgasm: in part by distracting me with the profusion of image passing before my eyes. The actual duration of orgasm seems to lengthen greatly, but this may be the usual experience of time expansion which comes with cannabis smoking.”

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Carl Sagan

Essay as "Mr. X" (1969)