What an astonishing thing a book is.
CARL SAGANThe 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.
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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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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Understanding is a kind of ecstasy.
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We are like butterflies who flutter for a day and think it is forever.
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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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Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course.
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The very act of understanding is a celebration of joining, merging, even if on a very modest scale, with the magnificence of the Cosmos.
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All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
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Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
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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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Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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I don’t want to believe. I want to know.
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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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The Earth is a very small stage in a vast cosmic arena.
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We live on a mote of dust suspended in a sunbeam.
CARL SAGAN







