We are star stuff which has taken its destiny into its own hands.
CARL SAGANThe brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
More Carl Sagan Quotes
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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.
CARL SAGAN -
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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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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What an astonishing thing a book is.
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A galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
CARL SAGAN -
Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgement, the manner in which information is coordinated and used.
CARL SAGAN -
Better the hard truth, I say, than the comforting fantasy.
CARL SAGAN -
Imagination will often carry us to worlds that never were, but without it we go nowhere.
CARL SAGAN -
The price we pay for anticipation of the future is anxiety about it.
CARL SAGAN -
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 -
Nothing disturbs me more than the glorification of stupidity.
CARL SAGAN -
Books break the shackles of time, proof that humans can work magic.
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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.
CARL SAGAN -
The universe is not required to be in perfect harmony with human ambition.
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







