There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGANThe brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
More Carl Sagan Quotes
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Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
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Better the hard truth, I say, than the comforting fantasy.
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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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Where we have strong emotions, we’re liable to fool ourselves.
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The absence of evidence is not evidence of absence.
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All civilizations become either spacefaring or extinct.
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I don’t want to believe. I want to know.
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Extinction is the rule. Survival is the exception.
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A galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
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We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
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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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Science is a way of thinking much more than it is a body of knowledge.
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Imagination will often carry us to worlds that never were, but without it we go nowhere.
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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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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
CARL SAGAN