We live on a mote of dust suspended in a sunbeam.
CARL SAGANAdvances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
More Carl Sagan Quotes
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Every star may be a sun to someone.
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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 absence of evidence is not evidence of absence.
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We are star stuff which has taken its destiny into its own hands.
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The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.
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Other things being equal, it is better to be smart than to be stupid.
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To live in the hearts we leave behind is to live forever.
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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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Nature is unsentimental. Death is built in.
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We are a way for the cosmos to know itself.
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Books permit us to voyage through time, to tap the wisdom of our ancestors.
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Nothing disturbs me more than the glorification of stupidity.
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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 are all stardust.
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If you wish to make an apple pie from scratch, you must first invent the universe.
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If we ruin the earth, there is no place else to go.
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And you are made of a hundred trillion cells. We are, each of us, a multitude.
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I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.
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We are like butterflies who flutter for a day and think it is forever.
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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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The Earth is the only world known so far to harbor life.
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The universe is a pretty big place. If it’s just us, seems like an awful waste of space.
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For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.
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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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There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
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We make our world significant by the courage of our questions and the depth of our answers.
CARL SAGAN