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Thus the recent rapid evolution of human intelligence is not only the cause of but also the only conceivable solution to the many serious problems that beset us.
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
Problem
Solutions
Human
Evolution
Beset
Humans
Intelligence
Conceivable
Many
Cause
Rapid
Problems
Rapids
Serious
Recent
Causes
Solution
Also
Thus
More quotes by Carl Sagan
First rule in government spending: why build one when you can have two at twice the price?
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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.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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UFOs: The reliable cases are uninteresting and in the interesting cases are unreliable.
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The Cosmos is all that is or ever was or ever will be.
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The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.
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The politicians and the religious leaders and the weapons scientists have been at it for a long time and they've made a thorough mess of it. I mean, we're in deep trouble.
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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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The fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses.
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I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.
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Observation: I can't see a thing. Conclusion: Dinosaurs.
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There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across and some ten or fifteen billion years old, this may be the case forever. We are constantly stumbling on new surprises
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The fact is that far more crime and child abuse has been committed by zealots in the name of God, Jesus and Mohammed than has ever been committed in the name of Satan. Many people don’t like that statement, but few can argue with it.
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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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It's hard to kill a creature once it lets you see its consciousness.
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Books are key to understanding the world and participating in a democratic society.
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If you want to make a [rhubarb] pie from scratch, first you have to create the universe.
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I set before you two ways: You can use your technology to destroy yourselves or to carry you to the planets and the stars. It's up to you.
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Imagine we could accelerate continuously at 1 g-what we're comfortable with on good old terra firma-to the midpoint of our voyage, and decelerate continuously at 1 g until we arrive at our destination. It would take a day to get to Mars, a week and a half to Pluto, a year to the Oort Cloud, and a few years to the nearest stars.
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We live in an in-between universe where things change all right...but according to patterns, rules, or as we call them, laws of nature.
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