To live in the hearts we leave behind is to live forever.
CARL SAGANNot all birds can fly. What separates the flyers from the walkers is the ability to take off.
More Carl Sagan Quotes
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One of the great commandments of science is: Mistrust arguments from authority.
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Extinction is the rule. Survival is the exception.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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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 are star stuff harvesting sunlight.
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If you wish to make an apple pie from scratch, you must first invent the universe.
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The only thing we’ve found that makes the emptiness bearable, is each other.
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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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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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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
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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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A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles.
CARL SAGAN