All civilizations become either spacefaring or extinct.
CARL SAGANEvery star may be a sun to someone.
More Carl Sagan Quotes
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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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Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
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Other things being equal, it is better to be smart than to be stupid.
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Science is a way to not fool ourselves.
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You are worth about 3 dollars worth in chemicals.
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The Earth is a very small stage in a vast cosmic arena.
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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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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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We make our world significant by the courage of our questions and the depth of our answers.
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Where we have strong emotions, we’re liable to fool ourselves.
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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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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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We are all stardust.
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I think the health of our civilization, the depth of our awareness about the underpinnings of our culture and our concern for the future can all be tested by how well we support our libraries.
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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
CARL SAGAN