Carl Sagan Quotes, Lying Quotes, Understanding Quotes

Wisdom lies in understanding our limitations.

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It seems madness to say, 'We're worried that they're going to become addicted to marijuana' -- there's no evidence whatever that it's an addictive drug, but even if it were, these people are dying, what are we saving them from?

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Extraordinary claims demand extraordinary evidence

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One of the great commandments of science is, 'Mistrust arguments from authority'. (Scientists, being primates, and thus given to dominance hierarchies, of course do not always follow this commandment.)

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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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In exchange for freedom of inquiry, scientists are obliged to explain their work.

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Ask courageous questions. Do not be satisfied with superficial answers.

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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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The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge; it has no in the endeavor of science. We do not know in advance who will discover fundamental insights.

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We need to reduce military budgets; raise living standards; engender respect for learning; support science, scholarship, invention, and industry; promote free inquiry; reduce domestic coercion; involve the workers more in managerial decisions; and promote genuine respect and understanding derived from an acknowledgement of our common humanity and our common jeopardy.

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When you look more generally at life on Earth, you find that it is all the same kind of life. There are not many different kinds; there's only one kind. It uses about fifty fundamental biological building blocks, organic molecules.

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The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.

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How is it that hardly any major religion has looked at science and concluded, “This is better than we thought! The Universe is much bigger than our prophets said, grander, more subtle, more elegant?

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The fact is that far more crime and child abuse has been committed by zealots in the name of God, Jesus and Mohammed than has ever been committed in the name of Satan. Many people don’t like that statement, but few can argue with it.

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In all our searching, the only thing we've found that makes the emptiness bearable is each other.

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We are, each of us, a multitude. Within us is a little universe.

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I don't know the answer. Maybe no one knows. Maybe when you grow up, you'll be the first to find out.

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Where we have strong emotions, we're liable to fool ourselves.

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For a long time the human instinct to understand was thwarted by facile religious explanations.

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We live in a society exquisitely dependent on science and technology and yet have cleverly arranged things so that almost no one understands science and technology.

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