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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
Carl Sagan
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Carl Sagan
Age: 62 †
Born: 1934
Born: November 9
Died: 1996
Died: December 20
Astronomer
Astrophysicist
Cosmologist
Naturalist
Non-Fiction Writer
Novelist
Physicist
Planetary Scientist
Science Communicator
Brooklyn
New York
Carl Edward Sagan
Sagan
Carl E. Sagan
Carl E Sagan
C. E. Sagan
C.E. Sagan
C E Sagan
C. Sagan
C Sagan
Sagan C
Sagan C.
Sagan C. E.
Sagan CE
Dna
Molecules
Galaxy
Atoms
Typical
Stars
Many
Molecule
More quotes by Carl Sagan
Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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If we ruin the earth, there is no place else to go
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Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.
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The dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance.
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A single message from space will show that it is possible to live through technological adolescence. . . . It is possible that the future of human civilization depends on the receipt of interstellar messages.
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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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If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?
Carl Sagan
If intelligence is our only edge, we must learn to use it better, to shape it, to understand its limitations and deficiencies -- to use it as cats use stealth, as katydids use camouflage -- to make it the tool of our survival.
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There is a report that says that kids who watch violent TV programs tend to be more violent when they grow up. But did the TV cause the violence, or do violent children preferentially enjoy watching violent programs?
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The method of science, as stodgy and grumpy as it may seem, is far more important than the findings of science.
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Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
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All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science. But that passion is unrequited. Surveys suggest that some 95% of Americans are scientifically illiterate. That's...the same fraction...of slaves who were illiterate before the Civil War.
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Books tap the wisdom of our species -- the greatest minds, the best teachers -- from all over the world and from all our history. And they're patient.
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There are more potential combinations of DNA [physical forms] than there are atoms in the universe.
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Real patriots ask questions.
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Our loyalties are to the species and the planet. We speak for Earth.
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We are the universe experiencing itself.
Carl Sagan
We are a way for the cosmos to know itself.
Carl Sagan
We are the custodians of life's meaning.
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My deeply held belief is that if a god of anything like the traditional sort exists, our curiosity and intelligence is provided by such a God. We would be unappreciative of that gift if we suppressed our passion to explore the universe and ourselves.
Carl Sagan
