Quotes by Carl Sagan

Carl Sagan

Carl Sagan

American astronomer, cosmologist, astrophysicist and author

Lived from: 1934 - 1996

Category: Scientists | Writers (Contemporary) Country: FlagUnited States

Born: 9 november 1934 Died: 20 december 1996

Quotes 101 till 120 of 139.

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  • The universe is a pretty big place. If it's just us, seems like an awful waste of space.
    ― Carl Sagan
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  • The universe seems neither benign nor hostile, merely indifferent to the concerns of such puny creatures as we are.
    Cosmos (1980)
    ― Carl Sagan
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  • The vast distances that separate the stars are providential. Beings and worlds are quarantined from one another. The quarantine is lifted only for those with sufficient self-knowledge and judgement to have safely traveled from star to star.
    Pale Blue Dot: A Vision of the Human Future in Space (1994)
    ― Carl Sagan
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  • The well-meaning contention that all ideas have equal merit seems to me little different from the disastrous contention that no ideas have any merit.
    ― Carl Sagan
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  • The words question and quest are cognates. Only through inquiry can we discover truth.
    Brocas Brain: Reflections on the Romance of Science (1979)
    ― Carl Sagan
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  • There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science is a self-correcting process.
    ― Carl Sagan
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  • There is a lurking fear that some things are 'not meant' to be known, that some inquiries are too dangerous for human being to make.
    ― Carl Sagan
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  • There is nothing inhuman about an intelligent machine; it is indeed an expression of those superb intellectual capabilities that only human beings, of all the creatures on our planet, now possess.
    Future space programs 1975
    ― Carl Sagan
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  • They (i. e., the Pythagoreans) did not advocate the free confrontation of conflicting points of view. Instead, like all orthodox religions, they practised a rigidity that prevented them from correcting their errors.
    Cosmos (1980)
    ― Carl Sagan
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  • This planet is run by crazy people. Remember what they have to do to get where they are. Their perspective is so narrow, so...brief. A few years. In the best of them a few decades. They care only about the time they are in power.
    Contact (1985) Ch. 23 (p. 403)
    ― Carl Sagan
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  • Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human beings will prefer the fleeting comforts of superstition. They avoid rather than confront the world. But those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and prejudices, will penetrate its deepest mysteries.
    Cosmos (1980)
    ― Carl Sagan
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  • To read is to voyage through time.
    ― Carl Sagan
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  • Understanding is a kind of ecstasy.
    ― Carl Sagan
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  • We are made of star-stuff. Our bodies are made of star-stuff. There are pieces of star within us all.
    ― Carl Sagan
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  • We are the local embodiment of a Cosmos grown to self-awareness. We have begun to contemplate our origins: starstuff pondering the stars; organized assemblages of ten billion billion billion atoms considering the evolution of atoms; tracing the long journey by which, here at least, consciousness arose. Our loyalties are to the species and the planet. We speak for Earth. Our obligation to survive is owed not just to ourselves but also to that Cosmos, ancient and vast, from which we spring.
    ― Carl Sagan
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  • We are, in the most profound sense, children of the Cosmos.
    ― Carl Sagan
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  • We could not guess how different from us they (extraterrestrials) might be. It was hard enough to guess the intentions of our elected representatives in Washington.
    Contact (1985) Ch. 3 (p. 48)
    ― Carl Sagan
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  • We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.
    ― Carl Sagan
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  • We have entered, almost without noticing, an age of exploration and discovery unparalleled since the Renaissance.
    ― Carl Sagan
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  • We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the human species? Who speaks for Earth?
    Cosmos (1980)
    ― Carl Sagan
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