The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
Carl SaganTags: science beauty philosophy universe atoms cosmos
The near side of a galaxy is tens of thousands of light-years closer to us than the far side; thus we see the front as it was tens of thousands of years before the back. But typical events in galactic dynamics occupy tens of millions of years, so the error in thinking of an image of a galaxy as frozen in one moment of time is small.
Carl SaganTags: science astronomy awe galaxy
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
Carl SaganClaims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value the may have in inspiring us or in exciting our sense of wonder.
Carl SaganTags: science evidence scientific-theory
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
Carl SaganIt is the tension between creativity and skepticism that has produced the stunning and unexpected findings of science.
Carl SaganThe Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.
Carl SaganTags: life universe mystery carl-sagan cosmos
Atoms are mainly empty space. Matter is composed chiefly of nothing.
Carl SaganWe are like butterflies who flutter for a day and think it is forever.
Carl SaganYou have to know the past to understand the present.
Carl SaganTags: history
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