Carl Sagan Quotes, Wisdom Quotes, Understanding Quotes

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

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Tags : Carl Sagan Quotes , Wisdom Quotes , Understanding Quotes

Science ... looks skeptically at all claims to knowledge, old and new. It teaches not blind obedience to those in authority but to vigorous debate, and in many respects that's the secret of its success.

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Tags : Carl Sagan Quotes , Secret Quotes , Looks Quotes

The absence of evidence is not the evidence of absence.

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Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.

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

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Tags : Carl Sagan Quotes , Inspirational Quotes , Life Quotes

If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then, we are up for grabs for the next charlatan (political or religious) who comes rambling along.

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Tags : Carl Sagan Quotes , Religious Quotes , Political Quotes

There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science is a self-correcting process.

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Tags : Carl Sagan Quotes , Truth Quotes , Self Quotes

Scientists can routinely predict a solar eclipse, to the minute, a millennium in advance. You can go to the witch doctor to lift the spell that causes your pernicious anaemia, or you can take Vitamin B12. If you want to save your child from polio, you can pray or you can inoculate. If you're interested in the sex of your unborn child, you can consult plumb-bob danglers all you want . . . but they'll be right, on average, only one time in two. If you want real accuracy . . . try amniocentesis and sonograms. Try science.

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Tags : Carl Sagan Quotes , Sex Quotes , Children Quotes

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

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Tags : Carl Sagan Quotes , Death Quotes , Faith Quotes

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?

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Tags : Carl Sagan Quotes , Atheist Quotes , Childhood Quotes

Nobody listens to mathematicians.

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The old appeals to racial, sexual and religious chauvinism to rabid nationalist fervor, are beginning not to work.

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Tags : Carl Sagan Quotes , Religious Quotes , Zeitgeist Quotes

By exploring other worlds we safeguard this one. By itself, I think this fact more than justifies the money our species has spent in sending ships to other worlds. It is our fate to live during one of the most perilous and, at the same time, one of the most hopeful chapters in human history.

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Tags : Carl Sagan Quotes , Fate Quotes , Thinking Quotes

We are, each of us, a multitude. Within us is a little universe.

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Tags : Carl Sagan Quotes , Pain Quotes , Littles Quotes

Extraordinary observations require extraordinary evidence to make them believable.

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Tags : Carl Sagan Quotes , Observation Quotes , Evidence Quotes

An atheist has to know a lot more than I know. An atheist is someone who knows there is no god. By some definitions atheism is very stupid.

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Tags : Carl Sagan Quotes , Atheist Quotes , Agnostic Quotes

The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand. It has been said that astronomy is a humbling and character-building experience..... To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.

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Tags : Carl Sagan Quotes , Responsibility Quotes , Home Quotes

There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. It is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything.

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We are made of starstuff.

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I don't know the answer. Maybe no one knows. Maybe when you grow up, you'll be the first to find out.

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Tags : Carl Sagan Quotes , Growing Up Quotes , Answers Quotes