All civilizations become either spacefaring or extinct.
CARL SAGANExtinction is the rule. Survival is the exception.
More Carl Sagan Quotes
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The visions we offer our children shape the future.
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Books permit us to voyage through time, to tap the wisdom of our ancestors.
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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.
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Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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We are star stuff which has taken its destiny into its own hands.
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People are not stupid. They believe things for reasons.
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We live on a mote of dust suspended in a sunbeam.
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There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
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Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
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If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.
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I think the health of our civilization, the depth of our awareness about the underpinnings of our culture and our concern for the future can all be tested by how well we support our libraries.
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Science is a way of thinking much more than it is a body of knowledge.
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Somewhere, something incredible is waiting to be known.
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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Stars are phoenixes, rising from their own ashes.
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Your god is too small for my universe.
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The universe seems neither benign nor hostile, merely indifferent.
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Extraordinary claims require extraordinary evidence.
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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
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You have to know the past to understand the present.
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Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
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Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
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Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
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Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
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Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.
CARL SAGAN