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A fact is a simple statement that everyone believes. It is innocent, unless found guilty. A hypothesis is a novel suggestion that no one wants to believe. It is guilty, until found effective.

— Edward Teller Conversations on the Dark Secrets of Physics (1991)

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More quotes by Edward Teller

We must learn to live with contradictions, because they lead to deeper and more effective understanding.

There's no system foolproof enough to defeat a sufficiently great fool.

Total security has never been available to anyone. To expect it is unrealistic; to imagine that it can exist is to invite disaster.

The Pursuit of Simplicity (1981)

I believe in evil. It is the property of all those who are certain of truth. Despair and fanaticism are only differing manifestations of evil.

The eyes of childhood are magnifying lenses.

Memoirs : A Twentieth Century Journey in Science and Politics (2001)

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Quote text and notes from Wikiquote: Edward Teller (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.