Imagination will often carry us to worlds that never were, but without it we go nowhere.
CARL SAGANStars are phoenixes, rising from their own ashes.
More Carl Sagan Quotes
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Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
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Where we have strong emotions, we’re liable to fool ourselves.
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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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We are a way for the cosmos to know itself.
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Across the sea of space, the stars are other suns.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.
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Arguments from authority carry little weight, authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
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The only thing we’ve found that makes the emptiness bearable, is each other.
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If we ruin the earth, there is no place else to go.
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I’ve always thought an agnostic is an atheist without the courage of his convictions.
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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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We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.
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We are star stuff harvesting sunlight.
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We are all stardust.
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All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
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The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
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Science is a way to not fool ourselves.
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Human beings have a demonstrated talent for self-deception when their emotions are stirred.
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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.
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Nature is unsentimental. Death is built in.
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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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To live in the hearts we leave behind is to live forever.
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I don’t want to believe. I want to know.
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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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The universe is not required to be in perfect harmony with human ambition.
CARL SAGAN