The price we pay for anticipation of the future is anxiety about it.
CARL SAGANBe grateful everyday for the brief but magnificent opportunity that life provides.
More Carl Sagan Quotes
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We make our world significant by the courage of our questions and the depth of our answers.
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The absence of evidence is not evidence of absence.
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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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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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Nature is unsentimental. Death is built in.
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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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All civilizations become either spacefaring or extinct.
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Stars are phoenixes, rising from their own ashes.
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You have to know the past to understand the present.
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Where we have strong emotions, we’re liable to fool ourselves.
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The universe is not required to be in perfect harmony with human ambition.
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If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.
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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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Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course.
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We can’t help it. Life looks for life.
CARL SAGAN