Understanding is a kind of ecstasy.
CARL SAGANNot all birds can fly. What separates the flyers from the walkers is the ability to take off.
More Carl Sagan Quotes
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All civilizations become either spacefaring or extinct.
CARL SAGAN -
Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
CARL SAGAN -
The cure for a fallacious argument is a better argument, not the suppression of ideas.
CARL SAGAN -
We make our world significant by the courage of our questions and the depth of our answers.
CARL SAGAN -
To live in the hearts we leave behind is to live forever.
CARL SAGAN -
The absence of evidence is not evidence of absence.
CARL SAGAN -
Across the sea of space, the stars are other suns.
CARL SAGAN -
We are star stuff which has taken its destiny into its own hands.
CARL SAGAN -
Extinction is the rule. Survival is the exception.
CARL SAGAN -
Stars are phoenixes, rising from their own ashes.
CARL SAGAN -
Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
CARL SAGAN -
For small creatures such as we the vastness is bearable only through love.
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 -
Other things being equal, it is better to be smart than to be stupid.
CARL SAGAN -
Nature is unsentimental. Death is built in.
CARL SAGAN







