More by Carl Sagan
It is all a matter of time scale. An event that would be unthinkable in a hundred years may be inevitable in a hundred million.
Cosmos (1980)
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.
Cosmos (1980)
If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?
The Demon-Haunted World : Science as a Candle in the Dark (1995)
If we long for our planet to be important, there is something we can do about it. We make our world significant by the courage of our questions and by the depth of our answers.
Cosmos (1980)
Since, in the long run, every planetary society will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring — not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive.
Pale Blue Dot: A Vision of the Human Future in Space (1994)
Those who raise questions about the God hypothesis and the soul hypothesis are by no means all atheists.
Conversations with Carl Sagan (2006)
Human beings have a demonstrated talent for self-deception when their emotions are stirred.
Cosmos (1980)
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.
Contact (1985)
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