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If you wish to make an apple pie from scratch, you must first invent the universe.

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
Firsts
Apples
Pie
First
Environment
Astronomy
Must
Food
Inventing
Make
Universe
Invent
Wish
Cosmos
Astronomers
Science
Culinary
Hipster
Inspirational
Apple
Scratch
Nature
Cosmic
Scratches

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In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature. They can't help it.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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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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We are a way for the cosmos to know itself.
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I think the discomfort that some people feel in going to the monkey cages at the zoo is a warning sign.
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There are lots of ways to communicate what we know, but few ways to communicate what we feel. Music is one way to communicate emotions.
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A googolplex is precisely as far from infinity as is the number 1... no matter what number you have in mind, infinity is larger still.
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Somewhere, something incredible is waiting to be known.
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If chimpanzees have consciousness, if they are capable of abstractions, do they not have what until now has been described as 'human rights'? How smart does a chimp have to be before killing him constitutes murder?
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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.
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Religions are tough. Either they make no contentions which are subject to disproof or they quickly redesign doctrine after disproof. ... near the core of the religious experience is something remarkably resistant to rational inquiry.
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First rule in government spending: why build one when you can have two at twice the price?
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The Cosmos is all that is or ever was or ever will be.
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Because men, compared to male chimps, have such relatively small testicles (large testicles indicate a species where many males mate, one after the other, with the same female), we might guess that promiscuous societies were uncommon in the immediate human past.
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Since, in the long run, every planetary society will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring — not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive.
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The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.
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.. Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the 'Momentary' masters of a 'Fraction' of a 'Dot'
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Even Johannes Kepler, Isaac Newton, Charles Darwin, Gregor Mendel, and Albert Einstein made serious mistakes. But the scientific enterprise arranges things so that teamwork prevails: What one of us, even the most brilliant among us, misses, another of us, even someone much less celebrated and capable, may detect and rectify.
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We are star stuff which has taken its destiny into its own hands. The loom of time and space works the most astonishing transformations of matter.
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After the earth dies, some 5 billion years from now, after it's burned to a crisp, or even swallowed by the Sun, there will be other worlds and stars and galaxies coming into being - and they will know nothing of a place once called Earth.
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