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Carl Sagan Quotes


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Quotes by Carl Sagan

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Absence of evidence is not evidence of absence.

~Carl Sagan

Topics: Absence Evidence

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Even these stars, which seem so numerous, are as sand, as dust - or less than dust - in the enormity of the space in which there is nothing.

~Carl Sagan

Topics: Dust Enormity Even Less Nothing Numerous Sand Seem Space Stars Than Which

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But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright Brothers. But they also laughed at Bozo the Clown.

~Carl Sagan

Topics: Also Brothers Clown Columbus Does Fact Geniuses Imply Laughed Some Were Who Wright Wright Brothers

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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

Topics: Away Corner Far Find Forgotten Galaxies Galaxy Insignificant Live Lost More People Planet Some Star Than Tucked Universe Which Who

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

~Carl Sagan

Topics: Brain Feel Good Joyous Like Muscle Understanding Use Very

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The universe is not required to be in perfect harmony with human ambition.

~Carl Sagan

Topics: Ambition Harmony Human Perfect Required Universe

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No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.

~Carl Sagan

Topics: Beings Home Human Human Beings Nothing Other Perception Planet Powerful Solar Solar System Suitable System Very World

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We've arranged a civilization in which most crucial elements profoundly depend on science and technology.

~Carl Sagan

Topics: Arranged Civilization Crucial Depend Elements Most Profoundly Science Science And Technology Technology Which

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

~Carl Sagan

Topics: Better Delusion Far Grasp However Persist Really Reassuring Satisfying Than Universe

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In our obscurity - in all this vastness - there is no hint that help will come from elsewhere to save us from ourselves. It is up to us.

~Carl Sagan

Topics: Come Elsewhere Help Hint Obscurity Our Ourselves Save Up Us Vastness Will

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Biography

Nationality: American

Type: Scientist

Born: November 9th, 1934

Died: December 20th, 1996

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