The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGANThe universe is a pretty big place. If it’s just us, seems like an awful waste of space.
More Carl Sagan Quotes
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We live on a mote of dust suspended in a sunbeam.
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The Earth is the only world known so far to harbor life.
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We are like butterflies who flutter for a day and think it is forever.
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The absence of evidence is not evidence of absence.
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Science is a way to not fool ourselves.
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We are a way for the cosmos to know itself.
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Extraordinary claims require extraordinary evidence.
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Somewhere, something incredible is waiting to be known.
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Other things being equal, it is better to be smart than to be stupid.
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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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People are not stupid. They believe things for reasons.
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The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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We can’t help it. Life looks for life.
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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.
CARL SAGAN