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There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.

— Enrico Fermi Nuclear Principles in Engineering (2005)

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More quotes by Enrico Fermi

I cannot think of a single one, not even intelligence.

If I could remember the names of all these particles, I'd be a botanist.

Hyperspace (1995)

He was simply unable to let things be foggy. Since they always are, this kept him pretty active.

The fact that no limits exist to the destructiveness of this weapon makes its very existence and the knowledge of its construction a danger to humanity as a whole. It is necessarily an evil thing considered in any light.

Such a weapon goes far beyond any military objective and enters the range of very great natural catastrophes. By its very nature it cannot be confined to a military objective but becomes a weapon which in practical effect is almost one of genocide.

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