Frasi di Carl Sagan

Carl Edward Sagan è stato un astronomo, divulgatore scientifico e autore di fantascienza statunitense.



È stato uno dei più famosi astronomi, astrofisici, astrobiologi ed astrochimici del Novecento. Lo si ricorda inoltre come grande divulgatore scientifico, come scrittore di fantascienza e come epistemologo in qualità di uno dei maggiori esponenti dello scetticismo scientifico.

Nel corso della sua vita Sagan pubblicò più di 600 tra articoli scientifici e articoli di divulgazione scientifica, e fu autore, coautore o editore di più di 20 libri. Nelle sue opere ha frequentemente appoggiato l'analisi scettica, l'umanesimo secolare e il metodo scientifico. È stato uno dei fondatori del Progetto SETI per la ricerca delle intelligenze extraterrestri. Wikipedia  

✵ 9. Novembre 1934 – 20. Dicembre 1996   •   Altri nomi Karl Seýgan
Carl Sagan photo

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Carl Sagan: 404   frasi 89   Mi piace

Carl Sagan frasi celebri

“Guardate ancora quel puntino. È qui. È casa. Siamo noi. Su di esso, tutti quelli che amate, tutti quelli di cui avete mai sentito parlare, ogni essere umano che sia mai esistito, hanno vissuto la propria vita. L'insieme delle nostre gioie e dolori, migliaia di presuntuose religioni, ideologie e dottrine economiche, ogni cacciatore e raccoglitore, ogni eroe e codardo, ogni creatore e distruttore di civiltà, ogni re e suddito, ogni giovane coppia innamorata, ogni madre e padre, figlio speranzoso, inventore ed esploratore, ogni predicatore di moralità, ogni politico corrotto, ogni "superstar", ogni "comandante supremo", ogni santo e peccatore nella storia della nostra specie è vissuto lì su un granello di polvere sospeso dentro ad un raggio di sole. La Terra è un piccolissimo palco in una vasta arena cosmica. Pensate ai fiumi di sangue versati da tutti quei generali e imperatori affinché, nella gloria ed il trionfo, potessero diventare i signori momentanei di una frazione di un punto. Pensate alle crudeltà senza fine impartite dagli abitanti di un angolo di questo pixel agli abitanti scarsamente distinguibili di qualche altro angolo, quanto frequenti i loro malintesi, quanto smaniosi di uccidersi a vicenda, quanto ferventi i loro odii. Le nostre ostentazioni, la nostra immaginaria autostima, l'illusione che abbiamo una qualche posizione privilegiata nell'Universo, sono messe in discussione da questo punto di luce pallida. Il nostro pianeta è un granellino solitario nel grande, avvolgente buio cosmico. Nella nostra oscurità, in tutta questa vastità, non c'è nessuna indicazione che possa giungere aiuto da qualche altra parte per salvarci da noi stessi.
La Terra è l'unico mondo conosciuto che possa ospitare la vita. Non c'è nessun altro posto, per lo meno nel futuro prossimo, dove la nostra specie possa migrare. Visitare, sì. Abitare, non ancora.
Che vi piaccia o meno, per il momento la Terra è dove ci giochiamo le nostre carte. È stato detto che l'astronomia è un'esperienza di umiltà e che forma il carattere. Non c'è forse migliore dimostrazione della follia delle vanità umane che questa distante immagine del nostro minuscolo mondo. Per me, sottolinea la nostra responsabilità di occuparci più gentilmente l'uno dell'altro, e di preservare e proteggere il pallido punto blu, l'unica casa che abbiamo mai conosciuto."”

da Pale Blue Dot

“L'estinzione è la regola. È la sopravvivenza a costituire l'eccezione.”

Origine: Da The Varieties of Scientific Experience, The Penguin Press HC, 2007. ISBN 1594201072; citato in Estinzione di James Rollins, ed. Nord 2014. ISBN 9788842925231

“Un grammo di osservazione non vale una tonnellata di teoria?”

Origine: Contact, p. 319

Frasi su Dio di Carl Sagan

Carl Sagan Frasi e Citazioni

“Risero di Colombo, risero di Fulton, risero dei fratelli Wright. Ma risero anche di Bozo il Clown.”

da Broca's Brain: Reflections on the Romance of Science

Carl Sagan: Frasi in inglese

“Consider again that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar", every "supreme leader", every saint and sinner in the history of our species lived there — on a mote of dust suspended in a sunbeam.
The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.
Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.
The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.
It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.”

Carl Sagan libro Pale Blue Dot

Origine: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 8, Supplemental image at randi.org http://www.randi.org/images/122801-BlueDot.jpg

“To live in the hearts we leave behind is to live forever.”

Origine: Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

“If we are alone in the Universe, it sure seems like an awful waste of space.”

Carl Sagan libro Contact

This is a paraphrase of Sagan quoting Thomas Carlyle: "A sad spectacle. If they be inhabited, what a scope for misery and folly. If they be not inhabited, what a waste of space."
Sagan delivered this quote during the symposium on "Life Beyond Earth and the Mind of Man", held at Boston University (20 November 1972), published in Life Beyond Earth and the Mind of Man (1973) edited by Richard Berendzen; Life Beyond Earth and the Mind of Man (1975) National Archives video http://www.youtube.com/watch?v=cQeOp7a8QMI
Misattributed
Origine: Contact

“We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.”

Carl Sagan libro Cosmos

Origine: Cosmos (1980), p. 193
Contesto: We embarked on our journey to the stars with a question first framed in the childhood of our species and in each generation asked anew with undiminished wonder: What are the stars? Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.

“Understanding is a kind of ecstasy”

Carl Sagan libro Broca's Brain

Origine: Broca's Brain: Reflections on the Romance of Science

“For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.”

Carl Sagan libro Il mondo infestato dai demoni

Origine: The Demon-Haunted World : Science as a Candle in the Dark (1995), Ch. 1 : The Most Precious Thing, p. 12
Origine: The Demon-Haunted World: Science as a Candle in the Dark

“There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.”

Carl Sagan libro Pale Blue Dot

Origine: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 8, Supplemental image at randi.org http://www.randi.org/images/122801-BlueDot.jpg
Contesto: Consider again that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar", every "supreme leader", every saint and sinner in the history of our species lived there — on a mote of dust suspended in a sunbeam.
The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.
Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.
The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.
It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.

“And chicken soup is widely known to be good for life.”

The Varieties of Scientific Experience: A Personal View of the Search for God (2006)
Contesto: The amount of organic matter that could have been produced in the first few hundred million years of Earth history was sufficient to have produced in the present ocean a several-percent solution of organic matter. This is just about the dilution of Knorr's chicken soup, and not that different from the composition either. And chicken soup is widely known to be good for life.

“Consider again that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives.”

Carl Sagan libro Pale Blue Dot

Origine: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 8, Supplemental image at randi.org http://www.randi.org/images/122801-BlueDot.jpg
Contesto: Consider again that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar", every "supreme leader", every saint and sinner in the history of our species lived there — on a mote of dust suspended in a sunbeam.
The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.
Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.
The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.
It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.

“In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist’s signature.”

Carl Sagan libro Contact

Origine: Contact (1985), Chapter 24 (p. 431)
Contesto: The universe was made on purpose, the circle said. In whatever galaxy you happen to find yourself, you take the circumference of a circle, divide it by its diameter, measure closely enough, and uncover a miracle — another circle, drawn kilometers downstream of the decimal point. There would be richer messages farther in. It doesn't matter what you look like, or what you're made of, or where you come from. As long as you live in this universe, and have a modest talent for mathematics, sooner or later you'll find it. It's already here. It's inside everything. You don't have to leave your planet to find it. In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist’s signature. Standing over humans, gods, and demons, subsuming Caretakers and Tunnel builders, there is an intelligence that antedates the universe.

“Absence of evidence is not evidence of absence.”

Carl Sagan libro Cosmos

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

“You can’t convince a believer of anything; for their belief is not based on evidence, it’s based on a deep seated need to believe.”

Sometimes attributed to Contact (1985), but the quote does not appear in that book.
It appears attributed to Sagan in Judson Poling's 2003 book "Do Science and the Bible Conflict?", but without source.
Misattributed
Origine: Via Google Books https://books.google.com/books?id=Ondv5WzhYYYC&pg=PA21&dq=Sagan

“Somewhere, something incredible is waiting to be known.”

This phrase was created by reporter Sharon Begley in the end of a 1977 Newsweek article with an extended profile of Carl Sagan. It was a final conclusion about Sagan's work and the topic of hypotethical extra-terrestrial life forms. "Quote Investigator" http://quoteinvestigator.com/2013/03/18/incredible/
Misattributed

“Science is not only compatible with spirituality; it is a profound source of spirituality.”

Carl Sagan libro Il mondo infestato dai demoni

Origine: The Demon-Haunted World: Science as a Candle in the Dark

“The extraordinary claims are not supported by extraordinary evidence.”

7 min 25 sec
Back reference to UFO abduction claims
Cosmos: A Personal Voyage (1990 Update), Encyclopedia Galactica [Episode 12]
Contesto: For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea. The extraordinary claims are not supported by extraordinary evidence.

“For small creatures such as we the vastness is bearable only through love.”

Carl Sagan libro Contact

Origine: Contact (1985), Chapter 24 (p. 430)

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