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Carl Sagan Quotes

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Carl Sagan Quote: “I don't want to believe. I want to know.”

I don't want to believe. I want to know.

— Carl Sagan



Carl Sagan Quote: “Somewhere, something incredible is waiting to be known.”

Somewhere, something incredible is waiting to be known.

— Carl Sagan


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

The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.

— Carl Sagan


Carl Sagan Quote: “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.”

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


Carl Sagan Quote: “We are a way for the cosmos to know itself.”

We are a way for the cosmos to know itself.

— Carl Sagan


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

We are like butterflies who flutter for a day and think it is forever.

— Carl Sagan


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

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

— Carl Sagan


Carl Sagan Quote: “Imagination will often carry us to worlds that never were. But without it we go nowhere.”

Imagination will often carry us to worlds that never were. But without it we go nowhere.

— Carl Sagan


Carl Sagan Quote: “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.”

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

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

— Carl Sagan



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

The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.

— Carl Sagan


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

We are star stuff which has taken its destiny into its own hands.

— Carl Sagan


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

For small creatures such as we the vastness is bearable only through love.

— Carl Sagan


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

Across the sea of space, the stars are other suns.

— Carl Sagan


Carl Sagan Quote: “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.”

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


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

If you wish to make an apple pie from scratch, you must first invent the universe.

— Carl Sagan


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

In all our searching, the only thing we've found that makes the emptiness bearable is each other.

— Carl Sagan


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

The universe seems neither benign nor hostile, merely indifferent.

— Carl Sagan


Carl Sagan Quote: “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.”

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


Carl Sagan Quote: “You are made of a hundred trillion cells. We are, each of us, a multitude.”

You are made of a hundred trillion cells. We are, each of us, a multitude.

— Carl Sagan



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

Science is a way of thinking much more than it is a body of knowledge.

— Carl Sagan


Carl Sagan Quote: “The absence of evidence is not the evidence of absence.”

The absence of evidence is not the evidence of absence.

— Carl Sagan


Carl Sagan Quote: “We began as wanderers, and we are wanderers still.”

We began as wanderers, and we are wanderers still.

— Carl Sagan


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

If it can be destroyed by the truth, it deserves to be destroyed by the truth.

— Carl Sagan


Carl Sagan Quote: “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.”

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


Carl Sagan Quote: “We are made of star-stuff. Our bodies are made of star-stuff. There are pieces of star within us all.”

We are made of star-stuff. Our bodies are made of star-stuff. There are pieces of star within us all.

— Carl Sagan


Carl Sagan Quote: “Your god is too small for my universe.”

Your god is too small for my universe.

— Carl Sagan


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

You have to know the past to understand the present.

— Carl Sagan


Carl Sagan Quote: “The Cosmos is all that is or ever was or ever will be.”

The Cosmos is all that is or ever was or ever will be.

— Carl Sagan


Carl Sagan Quote: “All civilizations become either spacefaring or extinct.”

All civilizations become either spacefaring or extinct.

— Carl Sagan


Carl Sagan Quote: “Don’t judge everyone else by your own limited experience.”

Don’t judge everyone else by your own limited experience.

— Carl Sagan


Carl Sagan Quote: “Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.”

Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

— Carl Sagan


Carl Sagan Quote: “Preserve and cherish the pale blue dot, the only home we’ve ever known.”

Preserve and cherish the pale blue dot, the only home we’ve ever known.

— Carl Sagan


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

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

— Carl Sagan


Carl Sagan Quote: “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.”

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


Carl Sagan Quote: “After the earth dies, some 5 billion years from now, after it’s burned to a crisp, or even swallowed by the Sun, there will be other worlds and stars and galaxies coming into being – and they will know nothing of a place once called Earth.”

After the earth dies, some 5 billion years from now, after it’s burned to a crisp, or even swallowed by the Sun, there will be other worlds and stars and galaxies coming into being – and they will know nothing of a place once called Earth.

— Carl Sagan


Carl Sagan Quote: “Understanding is a kind of ecstasy.”

Understanding is a kind of ecstasy.

— Carl Sagan


Carl Sagan Quote: “Who are we, if not measured by our impact on others? That’s who we are! We’re not who we say we are, we’re not who we want to be – we are the sum of the influence and impact that we have, in our lives, on others.”

Who are we, if not measured by our impact on others? That’s who we are! We’re not who we say we are, we’re not who we want to be – we are the sum of the influence and impact that we have, in our lives, on others.

— Carl Sagan


Carl Sagan Quote: “Extinction is the rule. Survival is the exception.”

Extinction is the rule. Survival is the exception.

— Carl Sagan


Carl Sagan Quote: “Even through your hardest days, remember we are all made of stardust.”

Even through your hardest days, remember we are all made of stardust.

— Carl Sagan


Carl Sagan Quote: “The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.”

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

— Carl Sagan


Carl Sagan Quote: “Science is more than a body of knowledge. It’s a way of thinking: a way of skeptically interrogating the universe.”

Science is more than a body of knowledge. It’s a way of thinking: a way of skeptically interrogating the universe.

— Carl Sagan


Carl Sagan Quote: “Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of magic.”

Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of magic.

— Carl Sagan


Carl Sagan Quote: “It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.”

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

— Carl Sagan


Carl Sagan Quote: “Every star may be a sun to someone.”

Every star may be a sun to someone.

— Carl Sagan


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

The cure for a fallacious argument is a better argument, not the suppression of ideas.

— Carl Sagan


Carl Sagan Quote: “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.”

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

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

— Carl Sagan


Carl Sagan Quote: “There are in fact 100 billion galaxies, each of which contain something like a 100 billion stars. Think of how many stars, and planets, and kinds of life there may be in this vast and awesome universe.”

There are in fact 100 billion galaxies, each of which contain something like a 100 billion stars. Think of how many stars, and planets, and kinds of life there may be in this vast and awesome universe.

— Carl Sagan


Carl Sagan Quote: “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.”

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

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