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“What is a ‘hunch’?”
“Eh? It’s a belief that something is so, or isn’t so, without evidence.”
“I’d call a hunch the result of automatic reasoning below the conscious level on data you did not know you possessed.”

— Robert A. Heinlein The Puppet Masters (1951)

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More quotes by Robert A. Heinlein

Love is the condition in which the happiness of another person is essential to your own.

Stranger in a Strange Land (1961)

“My uncle used to say, ‘Never pick up a stray kitten…unless you’ve already made up your mind to be owned by it.’”

The Cat Who Walks Through Walls (1985)

I have never been able to see life as anything but a vast complicated practical joke, and it’s better to laugh than cry.

I Will Fear No Evil (1970)

A generation which ignores history has no past —and no future.

Time Enough for Love (1973)

If you would know a man, observe how he treats a cat.

The Door Into Summer (1957)

All Robert A. Heinlein quotes →

Attribution

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