I’ve always thought an agnostic is an atheist without the courage of his convictions.
CARL SAGANOur ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
More Carl Sagan Quotes
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Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
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Extraordinary claims require extraordinary evidence.
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Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course.
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Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
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 -
Science is not only compatible with spirituality; it is a profound source of spirituality.
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Stars are phoenixes, rising from their own ashes.
CARL SAGAN -
The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
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Extinction is the rule. Survival is the exception.
CARL SAGAN -
A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles.
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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.
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We are star stuff which has taken its destiny into its own hands.
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There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGAN