Carl Sagan was born on November 9, 1934 in Brooklyn, New York. He was an astrophysicist, astronomer, cosmologist, and author. He published over 600 scientific research papers and articles. He narrated the famous television series “Cosmos: A Personal Voyage”. He received numerous honors and awards for his works. Here are famous Carl Sagan quotes for his fans.

“Somewhere, something incredible is waiting to be known.”
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, you will not find another.”
Carl Sagan, Cosmos

“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.”
Carl Sagan, Cosmos

“Science is not only compatible with spirituality; it is a profound source of spirituality.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.”
Carl Sagan

“If you wish to make an apple pie from scratch, you must first invent the universe.”
Carl Sagan, Cosmos

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

“Extraordinary claims require extraordinary evidence.”
Carl Sagan

carl sagan quotes
“Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us, or somebody who says everything in this book must be considered the literal truth and never mind the fallibility of all the human beings involved?”
Carl Sagan

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

“Imagination will often carry us to worlds that never were, but without it we go nowhere.”
Carl Sagan Quotes

“We are like butterflies who flutter for a day and think it is forever.”
Carl Sagan, Cosmos

“It pays to keep an open mind, but not so open your brains fall out.”
Carl Sagan

“Books permit us to voyage through time, to tap the wisdom of our ancestors.”
Carl Sagan, Cosmos

“The universe is a pretty big place. If it’s just us, seems like an awful waste of space.”
Carl Sagan, Contact

“We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.”
Carl Sagan

carl sagan quotes
“The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.”
Carl Sagan Quotes

“Frederick Douglass taught that literacy is the path from slavery to freedom. There are many kinds of slavery and many kinds of freedom, but reading is still the path.”
Carl Sagan

“We are a way for the cosmos to know itself.”
Carl Sagan, Cosmos

“I don’t want to believe. I want to know.”
Carl Sagan

“The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.”
Carl Sagan Quotes

“The truth may be puzzling. It may take some work to grapple with. It may be counter intuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.”
Carl Sagan

“I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.”
Carl Sagan

“The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.”
Carl Sagan, Cosmos

carl sagan quotes
“We make our world significant by the courage of our questions and the depth of our answers.”
Carl Sagan, Cosmos

“The absence of evidence is not the evidence of absence.”
Carl Sagan, Cosmos

“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.”
Carl Sagan, Cosmos

“The universe seems neither benign nor hostile, merely indifferent.”
Carl Sagan

“The illegality of cannabis is outrageous, an impediment to full utilization of a drug which helps produce the serenity and insight, sensitivity and fellowship so desperately needed in this increasingly mad and dangerous world.”
Carl Sagan Quotes

“It is of interest to note that while some dolphins are reported to have learned English – up to fifty words used in correct context – no human being has been reported to have learned dolphinese.”
Carl Sagan

“Science is a way of thinking much more than it is a body of knowledge.”
Carl Sagan

carl sagan quotes
“She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love.”
Carl Sagan, Contact

“Extinction is the rule. Survival is the exception.”
Carl Sagan, The Varieties of Scientific Experience: A Personal View of the Search for God

“The cure for a fallacious argument is a better argument, not the suppression of ideas.”
Carl Sagan

“If it can be destroyed by the truth, it deserves to be destroyed by the truth.”
Carl Sagan

“If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.”
Carl Sagan, Cosmos

“In all our searching, the only thing we’ve found that makes the emptiness bearable is each other.”
Carl Sagan

“You have to know the past to understand the present.”
Carl Sagan

“People are not stupid. They believe things for reasons. The last way for skeptics to get the attention of bright, curious, intelligent people is to belittle or condescend or to show arrogance toward their beliefs.”
Carl Sagan Quotes

carl sagan quotes
“Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.”
Carl Sagan

“Books break the shackles of time, proof that humans can work magic.”
Carl Sagan, Cosmos

“But nature is always more subtle, more intricate, more elegant than what we are able to imagine.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“We are all star stuff.”
Carl Sagan

“Understanding is a kind of ecstasy.”
Carl Sagan, Broca’s Brain: Reflections on the Romance of Science

“My view is that if there is no evidence for it, then forget about it. An agnostic is somebody who doesn’t believe in something until there is evidence for it, so I’m agnostic.”
Carl Sagan Quotes

“Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.”
Carl Sagan, Cosmos

“A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”
Carl Sagan

carl sagan quote
“You are worth about 3 dollars worth in chemicals.”
Carl Sagan, Cosmos

“We are star stuff which has taken its destiny into its own hands.”
Carl Sagan, Cosmos

“The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.”
Carl Sagan Quotes

“Atoms are mainly empty space. Matter is composed chiefly of nothing.”
Carl Sagan, Cosmos

“Observation: I can’t see a thing. Conclusion: Dinosaurs.”
Carl Sagan, Cosmos

“We are star stuff harvesting sunlight.”
Carl Sagan

“Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Across the sea of space, the stars are other suns.”
Carl Sagan

“It’s hard to kill a creature once it lets you see its consciousness.”
Carl Sagan, Contact

carl sagan quote
“If we long for our planet to be important, there is something we can do about it. We make our world significant by the courage of our questions and by the depth of our answers.”
Carl Sagan, Cosmos

“There are wonders enough out there without our inventing any.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“It is said that men may not be the dreams of the god, but rather that the gods are the dreams of men.”
Carl Sagan, Cosmos

“An organism at war with itself is doomed.”
Carl Sagan Quotes

“There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.”
Carl Sagan

“We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.”
Carl Sagan

“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.”
Carl Sagan

carl sagan quote
“The visions we offer our children shape the future.”
Carl Sagan

“We can’t help it. Life looks for life.”
Carl Sagan Quotes

“Not explaining science seems to me perverse. When you’re in love, you want to tell the world.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.”
Carl Sagan, Cosmos

“The visions we offer our children shape the future. It _matters_ what those visions are. Often they become self-fulfilling prophecies. Dreams are maps.”
Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

“Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgement, the manner in which information is coordinated and used.”
Carl Sagan, Cosmos

“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

“Any faith that admires truth, that strives to know God, must be brave enough to accommodate the universe.”
Carl Sagan, Contact

carl sagan quote
“Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.”
Carl Sagan Quotes

“We are all stardust.”
Carl Sagan

“You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human fallibility.”
Carl Sagan

“A galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.”
Carl Sagan, Cosmos

“I would suggest that science is, at least in my part, informed worship.”
Carl Sagan, The Varieties of Scientific Experience: A Personal View of the Search for God

“The universe is not required to be in perfect harmony with human ambition.”
Carl Sagan Quotes

“Those at too great a distance may, I am well are, mistake ignorance for perspective.”
Carl Sagan, Dragons of Eden: Speculations on the Evolution of Human Intelligence

“We wish to find the truth, no matter where it lies. But to find the truth we need imagination and skepticism both. We will not be afraid to speculate, but we will be careful to distinguish speculation from fact.”
Carl Sagan

“We humans look rather different from a tree. Without a doubt we perceive the world differently than a tree does. But down deep, at the molecular heart of life, the trees and we are essentially identical.”
Carl Sagan, Cosmos

carl sagan quote
“If we ruin the earth, there is no place else to go.”
Carl Sagan, Cosmos

“By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang.”
Carl Sagan, Cosmos

“A book is proof that humans are capable of working magic.”
Carl Sagan

“Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.”
Carl Sagan Quotes

“Better the hard truth, I say, than the comforting fantasy.”
Carl Sagan

“Every thinking person fears nuclear war, and every technological state plans for it.
Everyone knows it is madness, and every nation has an excuse.”
Carl Sagan, Cosmos

“And you are made of a hundred trillion cells. We are, each of us, a multitude.”
Carl Sagan, Cosmos

“It is the tension between creativity and skepticism that has produced the stunning and unexpected findings of science.”
Carl Sagan

carl sagan quote
“When you’re in love, you want to tell the world. My lifelong love affair with science.”
Carl Sagan Quotes, The Demon-Haunted World: Science as a Candle in the Dark

“Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they were before the Earth came to be. Telescopes are time machines.”
Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

“Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.”
Carl Sagan, Contact

“If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.”
Carl Sagan, Cosmos

“Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.”
Carl Sagan

“All colours are arbitrary.”
Carl Sagan Quotes

“Their position seems to be that their God is so great he doesn’t even have to exist.”
Carl Sagan, Contact

carl sagan quote
“We are made of stellar ash. Our origin and evolution have been tied to distant cosmic events. The exploration of the cosmos is a voyage of self-discovery.”
Carl Sagan, Cosmos

“There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.”
Carl Sagan

“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

“My wonder button is being pushed all the time.”
Carl Sagan

“A religion, old or new, that stressed the magnificence of the Universe as revealed by modern science might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths.”
Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

“The total amount of energy from outside the solar system ever received by all the radio telescopes on the planet Earth is less than the energy of a single snowflake striking the ground.”
Carl Sagan, Cosmos

“You know the opinion of Cervantes? He said that reading a translation is like examining the back of a piece of tapestry.”
Carl Sagan Quotes, Contact

carl sagan quote
“Keeping an open mind is a virtue—but, as the space engineer James Oberg once said, not so open that your brains fall out.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Our perceptions are fallible. We sometimes see what isn’t there. We are prey to optical illusions. Occasionally we hallucinate. We are error-prone.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“We must understand the Cosmos as it is and not confuse how it is with how we wish it to be.”
Carl Sagan, Cosmos

“I think if we ever reach the point where we think we thoroughly understand who we are and where we came from, we will have failed.”
Carl Sagan, The Varieties of Scientific Experience: A Personal View of the Search for God

“The great radio telescopes of the world are constructed in remote locations for the same reason Paul Gauguin sailed to Tahiti: For them to work well they must be far from civilization.”
Carl Sagan, Contact

“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.”
Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

“We are fortunate: we are alive; we are powerful; the welfare of our civilization and our species is in our hands. If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?”
Carl Sagan, Cosmos

carl sagan quote
“The method of science, as stodgy and grumpy as it may seem, is far more important than the findings of science.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“If you want to save your child from polio, you can pray or you can inoculate. … Choose science.”
Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“An atheist is someone who is certain that God doesn’t exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence.”
Carl Sagan

“The biblical God is a sloppy manufacturer. He’s not good at design, he’s not good at execution. He’d be out of business if there was any competition.”
Carl Sagan, Contact

“No question; language can free us of feeling, or almost. Maybe that’s one of its functions – so we can understand the world without becoming entirely overwhelmed by it.”
Carl Sagan Quotes, Contact

“Our God Is Alive and Well. Sorry About Yours.”
Carl Sagan, Contact

“Life is but a momentary glimpse of the wonder of this astounding universe, and it is sad to see so many dreaming it away on spiritual fantasy.”
Carl Sagan

“The fossil record implies trial and error, an inability to anticipate the future, features inconsistent with an efficient Great Designer.”
Carl Sagan, Cosmos

“These are the folks who brought us the hydrogen bomb. Forgive me, Lord, for not being more grateful to these kind souls.”
Carl Sagan, Contact

“Civilization is a product of the cerebral cortex.”
Carl Sagan, Cosmos

“Every star may be a sun to someone.”
Carl Sagan, Cosmos

“For a long time the human instinct to understand was thwarted by facile religious explanations.”
Carl Sagan, Cosmos

“In exchange for freedom of inquiry, scientists are obliged to explain their work.”
Carl Sagan

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