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  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)
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"An Academic speculated whether a bather is beautiful
if there is none in the forest to admire her. He hid
in the bushes to find out, which vitiated his premise
but made him happy.
Moral: Empiricism is more fun than speculation."
-- Sam Weber