“They are not mad. They're trained to believe, not to know. Belief can be manipulated. Only knowledge is dangerous.”

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Meaning

The quote contrasts belief with knowledge. It suggests that people can be taught to accept ideas without understanding them, and that such belief is easier to influence. It also presents knowledge as something more threatening because it cannot be controlled as easily.

When It Was Said

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Who It Was Said To

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Historical Context

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Source

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Original Language & Translation

Originally said in English.

Did They Really Say It?

Listed as attributed, with no source found on Wikiquote.

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About Frank Herbert

American science-fiction author

Frank Herbert was an American science-fiction author. He is best known for the 1965 novel Dune and its five sequels. He also wrote short stories and worked in several other roles, including newspaper journalist, photographer, book reviewer, ecological consultant, and lecturer. His reputation rests above all on Dune and the wider series that followed it.

More from Frank Herbert (163 quotes) →

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Books by Frank Herbert

Dune Messiah

2019

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Children of Dune

2008

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God Emperor of Dune

1981

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Heretics of Dune

1987

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