One of the great commandments of science is: Mistrust arguments from authority.
CARL SAGANOne glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.
More Carl Sagan Quotes
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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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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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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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I don’t want to believe. I want to know.
CARL SAGAN -
You are worth about 3 dollars worth in chemicals.
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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.
CARL SAGAN -
There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGAN -
Human beings have a demonstrated talent for self-deception when their emotions are stirred.
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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
CARL SAGAN -
The cure for a fallacious argument is a better argument, not the suppression of ideas.
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We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.
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Any faith that admires truth, that strives to know God, must be brave enough to accommodate the universe.
CARL SAGAN -
The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.
CARL SAGAN -
We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
CARL SAGAN -
The universe seems neither benign nor hostile, merely indifferent.
CARL SAGAN