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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

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
Years
Science
Surprise
Resolved
Doesn
Across
Surprises
Light
Case
Mysteries
Stills
Mystery
Fifteen
Still
Cases
Billion
May
Forever
Billions
Many
Universe
Ten
Tens
Much
Understand
Constantly
Stumbling

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If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.
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Science arouses a soaring sense of wonder. But so does pseudoscience. Sparse and poor popularizations of science abandon ecological niches that pseudoscience promptly fills. If it were widely understood that claims to knowledge require adequate evidence before they can be accepted, there would be no room for pseudoscience.
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If you are only skeptical, then no new ideas make it through to you.
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Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.
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The Bill of Rights decoupled religion from the state, in part because so many religions were steeped in an absolutist frame of mind - each convinced that it alone had a monopoly on the truth and therefore eager for the state to impose this truth on others.
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We are the custodians of life's meaning.
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Which aspects of our nature will prevail is uncertain, particularly when our visions and prospects are bound to one small part of the small planet Earth. But up there in the Cosmos an inescapable perspective awaits.
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If the constellations had been named in the twentieth century, I suppose we would see bicycles and refrigerators in the sky.
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Don't judge everyone else by your own limited experience.
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If you want to save your child from polio, you can pray or you can inoculate....Try science.
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The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
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Every thinking person fears nuclear war, and every technological state plans for it. Everyone knows it is madness, and every nation has an excuse
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Human beings have a demonstrated talent for self-deception when their emotions are stirred.
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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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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A stars rich in europium of distant galaxies analyzed through the collective light of a hundred billion constituent stars. Astronomical spectroscopy is an almost magical technique. It amazes me still. Auguste Comte picked a particularly unfortunate example.
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The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.
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We can always take but never give.
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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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For all our failings, despite our limitations and fallibilities, we humans are capable of greatness.
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