Create Yours

Carl Sagan Quotes
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Carl Sagan Quote: “Except for hydrogen, all the atoms that make each of us up – the iron in our blood, the calcium in our bones, the carbon in our brains – were manufactured in red giant stars thousands of light-years away in space and billions of years ago in time. We are, as I like to say, starstuff.”
Carl Sagan Quote: “We tend not to be especially critical when presented with evidence that seems to confirm our prejudices.”
Carl Sagan Quote: “While the style of the critique may vary with the character of the critic, overly polite criticism benefits neither the proponents of new ideas nor the scientific enterprise.”
Carl Sagan Quote: “Of all the planets, moons, asteroids, and comets in our Solar System, there is fire only on Earth – because there are large amounts of oxygen gas, O2, only on Earth. Fire was, much later, to have profound consequences for life and intelligence. One thing leads to another.”
Carl Sagan Quote: “A handful of sand contains about 10,000 grains, more than the number of stars we can see with the naked eye on a clear night. But the number of stars we can see is only the tiniest fraction of the number of stars that are. What we see at night is the merest smattering of the nearest stars. Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than all the grains of sand on all the beaches of the planet Earth.”
Carl Sagan Quote: “The fifth regular solid must then, they thought, correspond to some fifth element that could only be the substance of the heavenly bodies.”
Carl Sagan Quote: “I think the discomfort that some people feel in going to the monkey cages at the zoo is a warning sign.”
Carl Sagan Quote: “Science cuts two ways, of course; its products can be used for both good and evil. But there’s no turning back from science.”
Carl Sagan Quote: “Coal, oil and gas are called fossil fuels, because they are mostly made of the fossil remains of beings from long ago. The chemical energy within them is a kind of stored sunlight originally accumulated by ancient plants. Our civilization runs by burning the remains of humble creatures who inhabited the Earth hundreds of millions of years before the first humans came on the scene. Like some ghastly cannibal cult, we subsist on the dead bodies of our ancestors and distant relatives.”
Carl Sagan Quote: “We are rendering many species extinct; we may even succeed in destroying ourselves. But this is nothing new for the Earth. Humans would then be just the latest in a long sequence of upstart species that arrive on-stage, make some alterations in the scenery, kill off some of the cast, and then themselves exit stage-left forever. New players appear in the next act. The Earth abides. It has seen all this before.”
Carl Sagan Quote: “We are all flawed and creatures of our times. Is it fair to judge us by the unknown standards of the future?”
Carl Sagan Quote: “La prueba de ausencia no es prueba de ausencia.”
Carl Sagan Quote: “The Milky Way Galaxy is one of billions, perhaps hundreds of billions of galaxies notable neither in mass nor in brightness nor in how its stars are configured and arrayed. Some modern deep sky photographs show more galaxies beyond the Milky Way than stars within the Milky Way. Every one of them is an island universe containing perhaps a hundred billion suns. Such an image is a profound sermon on humility.”
Carl Sagan Quote: “For all its material advantages, the sedentary life has left us edgy, unfulfilled. Even after 400 generations in villages and cities, we haven’t forgotten. The open road still softly calls, like a nearly forgotten song of childhood. We invest far-off places with a certain romance. This appeal, I suspect, has been meticulously crafted by natural selection as an essential element in our survival.”
Carl Sagan Quote: “Predictions of surprising events always prove more accurate if not set down on paper beforehand.”
Carl Sagan Quote: “The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us – there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.”
Carl Sagan Quote: “I believe in Spinoza’s God, who revealed himself in the harmony of all being, not in the God who concerns himself with the fate and actions of men” – a more subtle religious view embraced by.”
Carl Sagan Quote: “Anger at queries about our beliefs is the body’s warning signal: here lies unexamined and probably dangerous doctrinal baggage.”
Carl Sagan Quote: “Religious sects, established and marginal, and some newly invented for the purpose, were dissecting the theological implications of the Message. Some thought it was from God, and some from the Devil. Astonishingly, some were even unsure.”
Carl Sagan Quote: “There are no forbidden questions in science, no matters to sensitive or delicate to be probed, no sacred truths. That openness to new ideas, combined with the most rigorous, skeptical scrutiny of all ideas, sifts the wheat from the chaff. It makes no difference how smart, august, or beloved you are. You must prove your case in the face of determined, expert criticism. Diversity and debate are valued. Opinions are encouraged to contend–substantively and in depth.”
Carl Sagan Quote: “You humans have a certain talent for adaptability – at least in the short term.”
Carl Sagan Quote: “If there is as a continuum from self-reproducing molecules, such as DNA, to microbes, and an evolutionary sequence continuum from microbes to humans, why should we imagine that continuum to stop at humans?”
Carl Sagan Quote: “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 of rock and metal.”
Carl Sagan Quote: “Hallucinations may be a neglected low door in the wall to a scientific understanding of the sacred.”
Carl Sagan Quote: “Tsiolkovsky wrote: “The Earth is the cradle of mankind. But one does not live in the cradle forever.”
Carl Sagan Quote: “But if they called everything divine which they do not understand, why, there would be no end of divine beings.”
Carl Sagan Quote: “These are some of the things that hydrogen atoms do, given fifteen billion years of cosmic evolution.”
Carl Sagan Quote: “A universe that is unknowable is no fit place for a thinking being. The ideal universe for us is one very much like the universe we inhabit.”
Carl Sagan Quote: “We will know which stars to visit. Our descendants will then skim the light years, the children of Thales and Aristarchus, Leonardo and Einstein.”
Carl Sagan Quote: “Many of the problems facing us may be soluble, but only if we are willing to embrace brilliant, daring and complex solutions. Such solutions require brilliant, daring and complex people. I believe that there are many more of them around – in every nation, ethnic group and degree of affluence – than we realize.”
Carl Sagan Quote: “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... our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe – are challenged by that point of pale light.”
Carl Sagan Quote: “Of course we all would like to foretell the future and make contact with the gods.”
Carl Sagan Quote: “Had Jupiter been several dozen times more massive, the matter in its interior would have undergone thermonuclear reactions, and Jupiter would have begun to shine by its own light. The largest planet is a star that failed.”
Carl Sagan Quote: “There is a place with four suns in the sky-red, white, blue, and yellow; two of them are so close together that they touch, and star-stuff flows between them. I know of a world with a million moons. I know of a sun the size of the Earth-and made of diamond... The universe is vast and awesome, and for the first time we are becoming part of it.”
Carl Sagan Quote: “Let’s see if I got this right,” she would say to herself. “I’ve taken an inert gas that’s in the air, made it into a liquid, put some impurities in a ruby, attached a magnet, and detected the fires of creation.”
Carl Sagan Quote: “So next time you hear a raving demagogue counseling hatred for other, slightly different groups of humans, for a moment at least see if you can understand his problem: He is heeding an ancient call that – however dangerous, obsolete, and maladaptive it may be today – once benefitted our species.”
Carl Sagan Quote: “At the Stourbridge Fair in 1663, at age twenty, he purchased a book on astrology, “out of a curiosity to see what there was in it.” He read it until he came to an illustration which he could not understand, because he was ignorant of trigonometry. So he purchased a book on trigonometry but soon found himself unable to follow the geometrical arguments. So he found a copy of Euclid’s Elements of Geometry, and began to read. Two years later he invented the differential calculus.”
Carl Sagan Quote: “The others would then fall silent and she would continue about doped gallium arsenide detectors, or the ethanol content of the galactic cloud W-3. The quantity of 200-proof alcohol in this single interstellar cloud was more than enough to maintain the present population of the Earth, if every adult were a dedicated alcoholic, for the age of the solar system. The tamada had appreciated the remark.”
Carl Sagan Quote: “The scientific way of thinking is at once imaginative and disciplined. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions. It counsels us to carry alternative hypotheses in our heads and see which best fit the facts. It urges on us a delicate balance between no-holds-barred openness to new ideas, however heretical, and the most rigorous skeptical scrutiny of everything – new ideas and established wisdom.”
Carl Sagan Quote: “I would expect a significant development and elaboration of language in only a few generations if all the chimps unable to communicate were to die or fail to reproduce. Basic English corresponds to about 1,000 words. Chimpanzees are already accomplished in vocabularies exceeding 10 percent of that number.”
Carl Sagan Quote: “Na Arean sat alone in space as a cloud that floats in nothingness. He slept not, for there was no sleep; he hungered not, for as yet there was no hunger. So he remained for a great while, until a thought came to his mind. He said to himself, “I will make a thing.”
Carl Sagan Quote: “Whatever their neurological and molecular antecedents, hallucinations feel real. They are sought out in many cultures and considered a sign of spiritual enlightenment.”
Carl Sagan Quote: “Perhaps for the first time in any medium, the person teaching you science – Carl Sagan – cared about the tangled mental roadways that can rob a person of rational thought.”
Carl Sagan Quote: “Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But the Voyager record will still be largely intact, in some other remote region of the Milky Way galaxy, preserving a murmur of an ancient civilization that once flourished – perhaps before moving on to greater deeds and other worlds – on the distant planet Earth.”
Carl Sagan Quote: “With an ambassador, you’re supposed to put your best foot forward, and we’ve been sending mainly crap to space for forty years.”
Carl Sagan Quote: “Or consider the mainstream religions. We are enjoined in Micah to do justly and love mercy; in Exodus we are forbidden to commit murder; in Leviticus we are commanded to love our neighbor as ourselves; and in the Gospels we are urged to love our enemies. Yet think of the rivers of blood spilled by fervent followers of the books in which these well-meaning exhortations are embedded. In.”
Carl Sagan Quote: “Modern Roman Catholicism has no quarrel with the Big Bang, with a Universe 15 billion or so years old, with the first living things arising from prebiological molecules, or with humans evolving.”
Carl Sagan Quote: “Our species has discovered a way to communicate through the dark, to transcend immense distances. No means of communication is faster or cheaper or reaches out farther. It’s called radio.”
Carl Sagan Quote: “In the littered field of discredited self-congratulatory chauvinisms, there is only one that seems to hold up, one sense in which we are special: Due to our own actions or inactions, and the misuse of our technology, we live at an extraordinary moment, for the Earth at least – the first time that a species has become able to wipe itself out.”
Carl Sagan Quote: “A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time.”
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