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Writing a novel is like trying to solve a very long mathematical equation. Changing anything can change everything else.
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
Novel
Like
Else
Change
Anything
Equation
Everything
Equations
Mathematical
Writing
Changing
Trying
Solve
Long
More quotes by Carl Sagan
It seems madness to say, 'We're worried that they're going to become addicted to marijuana' -- there's no evidence whatever that it's an addictive drug, but even if it were, these people are dying, what are we saving them from?
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The well-meaning contention that all ideas have equal merit seems to me little different from the disastrous contention that no ideas have any merit.
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I worry that, especially as the Millennium edges nearer, pseudo-science and superstition will seem year by year more tempting, the siren song of unreason more sonorous and attractive.
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Human history can be viewed as a slowly dawning awareness that we are members of a larger group.
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It took the Church until 1832 to remove Galileo 's work from its list of books which Catholics were forbidden to read at the risk of dire punishment of their immortal souls.
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The very act of understanding is a celebration of joining, merging, even if on a very modest scale, with the magnificence of the Cosmos.
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Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no.
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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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The evidence, so far at least and laws of Nature aside, does not require a Designer. Maybe there is one hiding, maddeningly unwilling to be revealed.
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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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UFOs: The reliable cases are uninteresting and in the interesting cases are unreliable.
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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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A multitude of aspects of the natural world that were considered miraculous only a few generations ago are now thoroughly understood in terms of physics and chemistry.
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We live in a society exquisitely dependent on science and technology and yet have cleverly arranged things so that almost no one understands science and technology.
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Science is not only compatible with spirituality it is a profound source of spirituality.
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Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you.
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Books are key to understanding the world and participating in a democratic society.
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For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea. The extraordinary claims are not supported by extraordinary evidence.
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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Discussing the possibilities of extraterrestrial life: I would love it even if they were short, sullen, grumpy and sexually obsessed. But there just isn't any good evidence.
Carl Sagan
