Top 100

Top 500 Carl Sagan Quotes (2024 Update)
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Carl Sagan Quote: “In a lot of scientists, the ratio of wonder to skepticism declines in time. That may be connected with the fact that in some fields-mathematics, physics, some others-the great discoveries are almost entirely made by youngsters.”
Carl Sagan Quote: “These days there seems to be nowhere left to explore, at least on the land area of the Earth. Victims of their very success, the explorers now pretty much stay home.”
Carl Sagan Quote: “Liberation from superstition is a necessary but not a sufficient condition for science.”
Carl Sagan Quote: “Many of the dangers we face indeed arise from science and technology – but, more fundamentally, because we have become powerful without becoming commensurately wise. The world-altering powers that technology has delivered into our hands now require a degree of consideration and foresight that has never before been asked of us.”
Carl Sagan Quote: “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 judgment to have safely traveled from star to star.”
Carl Sagan Quote: “Every cell is a triumph of natural selection, and we’re made of trillions of cells. Within us, is a little universe.”
Carl Sagan Quote: “In Mozambique, the story goes, monkeys do not talk, because they know if they utter even a single word some man will come and put them to work.”
Carl Sagan Quote: “La ciencia no es solamente compatible con la espiritualidad, sino que es una profunda fuente de espiritualidad.”
Carl Sagan Quote: “The fact that someone says something doesn’t mean it’s true. Doesn’t mean they’re lying, but it doesn’t mean it’s true.”
Carl Sagan Quote: “We can’t help it. Life looks for life.”
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: “We are at a crossroads in human history. Never before has there been a moment so simultaneously perilous and promising. We are the first species to have taken evolution into our own hands.”
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: “If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?”
Carl Sagan Quote: “If we are merely matter intricately assembled, is this really demeaning? If there’s nothing here but atoms, does that make us less or does that make matter more?”
Carl Sagan Quote: “If intelligence is our only edge, we must learn to use it better, to shape it, to understand its limitations and deficiencies – to use it as cats use stealth, as katydids use camouflage – to make it the tool of our survival.”
Carl Sagan Quote: “Both the Freudian and the Platonic metaphors emphasize the considerable independence of and tension among the constituent parts of the psyche, a point that characterizes the human condition.”
Carl Sagan Quote: “If constellations had been named in the 20th century, I suppose we would see bicycles.”
Carl Sagan Quote: “Once intelligent beings achieve technology and the capacity for self-destruction of their species, the selective advantage of intelligence becomes more uncertain.”
Carl Sagan Quote: “The Earth is a very small stage in a vast cosmic arena. 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. 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.”
Carl Sagan Quote: “In our time we have less severe standards. We tell children about Santa Claus, the Easter Bunny, and the Tooth Fairy for reasons we think emotionally sound, but then disabuse them of these myths before they’re grown. Why retract? Because their well-being as adults depends on them knowing the world as it really is. We worry, and for good reason, about adults who still believe in Santa Claus.”
Carl Sagan Quote: “The way to find out about our place in the universe is by examining the universe and by examining ourselves – without preconceptions, with as unbiased a mind as we can muster.”
Carl Sagan Quote: “Science is more than a body of knowledge; it is a way of thinking.”
Carl Sagan Quote: “Pseudoscience speaks to powerful emotional needs that science often leaves unfulfilled. It caters to fantasies about personal powers we lack and long for.”
Carl Sagan Quote: “Looking at fires when high, by the way, especially through one of those prism kaleidoscopes which image their surroundings, is an extraordinarily moving and beautiful experience.”
Carl Sagan Quote: “It goes with a courageous intent to greet the universe as it really is, not to foist our emotional predispositions on it but to courageously accept what our explorations tell us.”
Carl Sagan Quote: “A radio telescope works more like a light meter than a camera. You point it toward some fairly broad region of the sky, and it records how much energy, in a particular radio frequency, is coming down to Earth.”
Carl Sagan Quote: “Are we willing to tolerate ignorance and complacency in matters that affect the entire human family?”
Carl Sagan Quote: “The politicians and the religious leaders and the weapons scientists have been at it for a long time and they’ve made a thorough mess of it. I mean, we’re in deep trouble.”
Carl Sagan Quote: “There are wonders enough out there without our inventing any.”
Carl Sagan Quote: “A still more glorious dawn awaits.”
Carl Sagan Quote: “I believe that in every person is a kind of circuit which resonates to intellectual discovery-and the idea is to make that resonance work.”
Carl Sagan Quote: “Thus, 99 percent of the Earth’s atmosphere is of biological origin. The sky is made by life.”
Carl Sagan Quote: “The ancient Ionians were the first we know of to argue systematically that laws and forces of Nature, rather than gods, are responsible for the order and even the existence of the world. As Lucretius summarized their views, “Nature free at once and rid of her haughty lords is seen to do all things spontaneously of herself without the meddling of the gods.”
Carl Sagan Quote: “If all the suns but ours collapsed tonight, how many lifetimes would it take us to realize that we were alone?”
Carl Sagan Quote: “If we’re capable of conjuring up terrifying monsters in childhood, why shouldn’t some of us, at least on occasion, be able to fantasize something similar, something truly horrifying, a shared delusion, as adults?”
Carl Sagan Quote: “But humans have deliberately selected which plants and animals shall live and which shall die for thousands of years. We are surrounded from babyhood by familiar farm and domestic animals, fruits and trees and vegetables. Where do they come from? Were they once free-living in the wild and then induced to adopt a less strenuous life on the farm? No, the truth is quite different. They are, most of them, made by us.”
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. The early warnings about technological dangers also come from science.”
Carl Sagan Quote: “We live at a moment when our relationships to each other, and to all other beings with whom we share this planet, are up for grabs.”
Carl Sagan Quote: “In a cosmic perspective, most human concerns seem insignificant, even petty.”
Carl Sagan Quote: “Civilization is a product of the cerebral cortex.”
Carl Sagan Quote: “The world is so exquisite with so much love and moral depth, that there is no reason to deceive ourselves with pretty stories for which there’s little good evidence. Far better it seems to me, in our vulnerability, is to look death in the eye and to be grateful every day for the brief but magnificent opportunity that life provides.”
Carl Sagan Quote: “Religions are often state-protected nurseries of pseudoscience, although there’s no reason why religions have to play that role. In a way, it’s an artefact from times long gone.”
Carl Sagan Quote: “I set before you two ways: You can use your technology to destroy yourselves or to carry you to the planets and the stars. It’s up to you.”
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: “You can get into a habit of thought in which you enjoy making fun of all those other people who don’t see things as clearly as you do. We have to guard carefully against it.”
Carl Sagan Quote: “One of the central issues in the world population crisis is poverty.”
Carl Sagan Quote: “In the vastness of the Cosmos there must be other civilizations far older and more advanced than ours.”
Carl Sagan Quote: “We’ve arranged a civilization in which most crucial elements profoundly depend on science and technology.”
Carl Sagan Quote: “If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?”
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