We are like butterflies who flutter for a day and think it is forever.
CARL SAGANEvery 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.
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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Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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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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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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For small creatures such as we the vastness is bearable only through love.
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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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People are not stupid. They believe things for reasons.
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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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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All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
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Science is a way of thinking much more than it is a body of knowledge.
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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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We all have a thirst for wonder. It’s a deeply human quality. Science and religion are both bound up with it.
CARL SAGAN