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The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they were before the Earth came to be. Telescopes are time machines.

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
Galaxies
Came
Distances
Stars
Past
Telescopes
Earth
Galaxy
Everything
Immense
Mean
Pace
Time
Machines
Distance

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If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?
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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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The dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance.
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We go about our daily lives understanding almost nothing of the world.
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In a complex universe, in a society undergoing unprecedented change, how can we find the truth if we are not willing to question everything and to give a fair hearing to everything?
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Man is a transitional animal. He is not the climax of creation
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If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power.
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The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge it has no in the endeavor of science. We do not know in advance who will discover fundamental insights.
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The Earth is a very small stage in a vast cosmic arena.
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The universe is a pretty big place. If it's just us, seems like an awful waste of space.
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It is the responsibility of scientists never to suppress knowledge, no matter how awkward that knowledge is, no matter how it may bother those in power we are not smart enough to decide which pieces of knowledge are permissible, and which are not.
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If we teach only the findings and products of science - no matter how useful and even inspiring they may be - without communicating its critical method, how can the average person possibly distinguish science from pseudoscience?
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Religions are often state-protected nurseries of pseudoscience, although there's no reason why religions have to play that role. In a way, it's an artefact from times long gone.
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We live at a moment when our relationships to each other, and to all other beings with whom we share this planet, are up for grabs.
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Human beings have a demonstrated talent for self-deception when their emotions are stirred.
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If you wish to make an apple pie from scratch, you must first invent the universe.
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Frederick Douglas taught that literacy is the path from slavery to freedom. There are many kinds of slavery and many kinds of freedom, but reading is still the path.
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Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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