We live on a mote of dust suspended in a sunbeam.
CARL SAGANA galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
More Carl Sagan Quotes
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Not explaining science seems to me perverse. When you’re in love, you want to tell the world.
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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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The universe is not required to be in perfect harmony with human ambition.
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We are a way for the cosmos to know itself.
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We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
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Extraordinary claims require extraordinary evidence.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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If you wish to make an apple pie from scratch, you must first invent the universe.
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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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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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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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If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.
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I don’t want to believe. I want to know.
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One of the great commandments of science is: Mistrust arguments from authority.
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The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
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Science is a way to not fool 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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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
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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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Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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Understanding is a kind of ecstasy.
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Don’t judge everyone else by your own limited experience.
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To live in the hearts we leave behind is to live forever.
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One of the greatest gifts adults can give – to their offspring and to their society – is to read to children.
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Those at too great a distance may, I am well are, mistake ignorance for perspective.
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You are worth about 3 dollars worth in chemicals.
CARL SAGAN