“Books are key to understanding the world and participating in a democratic society.”

— Carl Sagan, The Demon-Haunted World (1995), Ch. 21

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About Carl Sagan

1934 – 1996

American astronomer and science communicator, author and presenter of "Cosmos".

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“We make our world significant by the courage of our questions and by the depth of our answers.”

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“Imagination will often carry us to worlds that never were. But without it we go nowhere.”

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“The Cosmos is all that is or ever was or ever will be.”

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“Imagination is more important than knowledge.”

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“In three words I can sum up everything I've learned about life: it goes on.”

— Robert Frost

“When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it—this is knowledge.”

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“Learning without thought is labour lost; thought without learning is perilous.”

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“I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to…”

— Henry David Thoreau

“The more that you read, the more things you will know. The more that you learn, the more places you'll go.”

— Dr. Seuss

“Books are key to understanding the world and participating in a democratic society.”

About Carl Sagan

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