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The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from an investigation of the governing physics.
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
Courses
Consequences
Course
Experiments
Rather
Physics
War
Global
Prediction
Experience
Winter
Predictions
Science
Nuclear
Governing
Consequence
Investigation
Direct
Drawn
More quotes by Carl Sagan
Any civilization that doesn't develop space travel dies.
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Much of human history can, I think, be described as a gradual and sometimes painful liberation from provincialism, the emerging awareness that there is more to the world than was generally believed by our ancestors.
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If you are only skeptical, then no new ideas make it through to you.
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If you wish to make an apple pie from scratch, you must first invent the universe.
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Looking at fires when high, by the way, especially through one of those prism kaleidoscopes which image their surroundings, is an extraordinarily moving and beautiful experience.
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The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
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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 illegality of cannabis is outrageous.
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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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The Cosmos is all that is or ever was or ever will be.
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Personally, I would be delighted if there were a life after death, especially if it permitted me to continue to learn about this world and others, if it gave me a chance to discover how history turns out.
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Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe.
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A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet.
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We are like butterflies who flutter for a day and think it is forever.
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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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One trend that bothers me is the glorification of stupidity, that the media is reassuring people it's alright not to know anything. That to me is far more dangerous than a little pornography on the Internet.
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Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.
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He sought a way to preserve the past. John Hershel was one of the founders of a new form of time travel.... a means to capture light and memories. He actually coined a word for it... photography. When you think about it, photography is a form of time travel. This man is staring at us from across the centuries, a ghost preserved by light.
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The Platonists and their Christian successors held the peculiar notion that the Earth was tainted and somehow nasty, while the heavens were perfect and divine. The fundamental idea that the Earth is a planet, that we are citizens of the Universe, was rejected and forgotten.
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Who are we, if not measured by our impact on others?
Carl Sagan
