---
title: "12 Century Quotes By Carl Sagan"
description: "12 Century quotes by Carl Sagan. Plus more from Carl Sagan and more Century sayings from other authors."
image: "https://sms4smile.com/quotes/i/7f8/carl-sagan-160_century_in-our-time-we-have-sifted-the-sands-of_18599.jpg"
---

> [In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of…](https://sms4smile.com/quotes/carl-sagan/in-our-time-we-have-sifted-the-sands-of-mars-we-have-established-a/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/7f8/carl-sagan-160_century_in-our-time-we-have-sifted-the-sands-of_18599.jpg)

> [If the constellations had been named in the twentieth century, I suppose we would see bicycles and refrigerators in the sky.](https://sms4smile.com/quotes/carl-sagan/if-the-constellations-had-been-named-in-the-twentieth-century-i/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/3bb/carl-sagan-160_20th-century_if-the-constellations-had-been-named-in_2487492.jpg)

> [Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.](https://sms4smile.com/quotes/carl-sagan/books-are-like-seeds-they-can-lie-dormant-for-centuries-and-then/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/18f/carl-sagan-160_book_books-are-like-seeds-they-can-lie-dorman_2521305.jpg)

> [Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to…](https://sms4smile.com/quotes/carl-sagan/science-is-an-attempt-largely-successful-to-understand-the-world-to/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/853/carl-sagan-160_causes_science-is-an-attempt-largely-successful_1493690.jpg)

> [He sought a way to preserve the past. John Hershel was one of the founders of a new form of time travel……](https://sms4smile.com/quotes/carl-sagan/he-sought-a-way-to-preserve-the-past-john-hershel-was-one-of-the/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/9ac/carl-sagan-160_capture_he-sought-a-way-to-preserve-the-past-joh_1539405.jpg)

> [In Italy, the Inquisition was condemning people to death until the end of the eighteenth century, and inquisitional torture was not abolished…](https://sms4smile.com/quotes/carl-sagan/in-italy-the-inquisition-was-condemning-people-to-death-until-the-end/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/fe5/carl-sagan-160_atheist_in-italy-the-inquisition-was-condemning_2169369.jpg)

> [Centuries hence, when current social and political problems may seem as remote as the problems of the Thirty Years' War are to…](https://sms4smile.com/quotes/carl-sagan/centuries-hence-when-current-social-and-political-problems-may-seem/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/39d/carl-sagan-160_age_centuries-hence-when-current-social-and_1955481.jpg)

> [Teller contended, not implausibly, that hydrogen bombs keep the peace, or at least prevent thermonuclear war, because the consequences of warfare between…](https://sms4smile.com/quotes/carl-sagan/teller-contended-not-implausibly-that-hydrogen-bombs-keep-the-peace/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/e3a/carl-sagan-160_actors_teller-contended-not-implausibly-that-hy_931434.jpg)

> [I believe that even a smattering of such findings in modern science and mathematics is far more compelling and exciting than most…](https://sms4smile.com/quotes/carl-sagan/i-believe-that-even-a-smattering-of-such-findings-in-modern-science/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/599/carl-sagan-160_bacchus_i-believe-that-even-a-smattering-of-such_2930867.jpg)

> [Many statements about God are confidently made by theologians on grounds that today at least sound specious. Thomas Aquinas claimed to prove…](https://sms4smile.com/quotes/carl-sagan/many-statements-about-god-are-confidently-made-by-theologians-on/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/163/carl-sagan-160_able_many-statements-about-god-are-confidentl_1023613.jpg)

> [The values of science and the values of democracy are concordant, in many cases indistinguishable. Science and democracy began - in their…](https://sms4smile.com/quotes/carl-sagan/the-values-of-science-and-the-values-of-democracy-are-concordant-in/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/953/carl-sagan-160_adequate_the-values-of-science-and-the-values-of_534209.jpg)

> [ Science and mathematics \[are\] much more compelling and exciting than the doctrines of pseudoscience, whose practitioners were condemned as early as the… ](https://sms4smile.com/quotes/carl-sagan/science-and-mathematics-are-much-more-compelling-and-exciting-than/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

[Image](https://sms4smile.com/quotes/i/3e2/carl-sagan-160_bacchus_science-and-mathematics-are-much-more-co_2332206.jpg)

## Other authors on Century

## More by Carl Sagan

> [It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But is it…](https://sms4smile.com/quotes/carl-sagan/it-is-sometimes-said-that-scientists-are-unromantic-that-their/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from…](https://sms4smile.com/quotes/carl-sagan/the-prediction-of-nuclear-winter-is-drawn-not-of-course-from-any/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge; it has no…](https://sms4smile.com/quotes/carl-sagan/the-suppression-of-uncomfortable-ideas-may-be-common-in-religion-or/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [“Telepathy’ literally means to feel at a distance, just as ‘telephone’ is to hear at a distance and ‘television’ is to see at a…](https://sms4smile.com/quotes/carl-sagan/telepathy-literally-means-to-feel-at-a-distance-just-as-telephone-is/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [“On the scale of worlds—to say nothing of stars or galaxies—humans are inconsequential, a thin film of life on an obscure and solitary lump…](https://sms4smile.com/quotes/carl-sagan/on-the-scale-of-worlds-to-say-nothing-of-stars-or-galaxies-humans-are/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies,…](https://sms4smile.com/quotes/carl-sagan/every-one-of-us-is-in-the-cosmic-perspective-precious-if-a-human/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of dreams!](https://sms4smile.com/quotes/carl-sagan/in-our-time-we-have-sifted-the-sands-of-mars-we-have-established-a/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [ “\[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :\] If ‘fulfilled prophecy’ is your criterion,… ](https://sms4smile.com/quotes/carl-sagan/when-a-religious-couple-wrote-to-sagan-about-fulfilled-prophecies-he/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [Don't judge everyone else by your own limited experience.](https://sms4smile.com/quotes/carl-sagan/don-t-judge-everyone-else-by-your-own-limited-experience/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [“Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insight and knowledge, painfully…](https://sms4smile.com/quotes/carl-sagan/books-permit-us-to-voyage-through-time-to-tap-the-wisdom-of-our/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make…](https://sms4smile.com/quotes/carl-sagan/we-live-on-a-hunk-of-rock-and-metal-that-circles-a-humdrum-star-that/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [A tiny blue dot set in a sunbeam. Here it is. That's where we live. That's home. We humans are one species and this…](https://sms4smile.com/quotes/carl-sagan/a-tiny-blue-dot-set-in-a-sunbeam-here-it-is-that-s-where-we-live-that/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no.](https://sms4smile.com/quotes/carl-sagan/any-sufficiently-crisp-question-can-be-answered-by-a-single-binary/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [Humans — who enslave, castrate, experiment on, and fillet other animals — have had an understandable penchant for pretending animals do not feel pain.…](https://sms4smile.com/quotes/carl-sagan/humans-who-enslave-castrate-experiment-on-and-fillet-other-animals/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [Every star may be a sun to someone.](https://sms4smile.com/quotes/carl-sagan/every-star-may-be-a-sun-to-someone/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

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                        "text": "I believe that even a smattering of such findings in modern science and mathematics is far more compelling and exciting than most of the doctrines of pseudoscience, whose practitioners were condemned as early as the fifth century B.C. by the Ionian philosopher Heraclitus as “nigh -walkers, magicians, priests of Bacchus, priestesses of the wine-vat, mystery-mongers.” But science is more intricate and subtle, reveals a much richer imiverse, and powerfully evokes our sense of wonder.",
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                        "text": "Many statements about God are confidently made by theologians on grounds that today at least sound specious. Thomas Aquinas claimed to prove that God cannot make another God, or commit suicide, or make a man without a soul, or even make a triangle whose interior angles do not equal 180 degrees. But Bolyai and Lobachevsky were able to accomplish this last feat (on a curved surface) in the nineteenth century, and they were not even approximately gods.",
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                        "text": "The values of science and the values of democracy are concordant, in many cases indistinguishable. Science and democracy began - in their civilized incarnations - in the same time and place, Greece in the seventh and sixth centuries B.C. . . . Science thrives on, indeed requires, the free exchange of ideas; its values are antithetical to secrecy. Science holds to no special vantage points or privileged positions. Both science and democracy encourage unconventional opinions and vigorous debate. Both demand adequate reason, coherent argument, rigorous standards of evidence and honesty.",
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                        "text": "Science and mathematics [are] much more compelling and exciting than the doctrines of pseudoscience, whose practitioners were condemned as early as the fifth century B.C. by the Ionian philosopher Heraclitus as 'night walkers, magicians, priests of Bacchus, priestesses of the wine-vat, mystery-mongers.' But science is more intricate and subtle, reveals a much richer universe, and powerfully evokes our sense of wonder. And it has the additional and important virtue-to whatever extent the word has any meaning-of being true.",
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