You have to know the past to understand the present.
CARL SAGANBe grateful everyday for the brief but magnificent opportunity that life provides.
More Carl Sagan Quotes
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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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Human beings have a demonstrated talent for self-deception when their emotions are stirred.
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To live in the hearts we leave behind is to live forever.
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We are star stuff which has taken its destiny into its own hands.
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Better the hard truth, I say, than the comforting fantasy.
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Every star may be a sun to someone.
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We are a way for the cosmos to know itself.
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An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
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Don’t judge everyone else by your own limited experience.
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Nothing disturbs me more than the glorification of stupidity.
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Extraordinary claims require extraordinary evidence.
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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.
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The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
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Arguments from authority carry little weight, authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
CARL SAGAN







