To live in the hearts we leave behind is to live forever.
CARL SAGANWe 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.
More Carl Sagan Quotes
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Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
CARL SAGAN -
When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.
CARL SAGAN -
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.
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 -
The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.
CARL SAGAN -
Extraordinary claims require extraordinary evidence.
CARL SAGAN -
Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.
CARL SAGAN -
Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
CARL SAGAN -
Somewhere, something incredible is waiting to be known.
CARL SAGAN -
Imagination will often carry us to worlds that never were, but without it we go nowhere.
CARL SAGAN -
Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
CARL SAGAN -
We live on a mote of dust suspended in a sunbeam.
CARL SAGAN -
All civilizations become either spacefaring or extinct.
CARL SAGAN -
Other things being equal, it is better to be smart than to be stupid.
CARL SAGAN -
One of the great commandments of science is: Mistrust arguments from authority.
CARL SAGAN







