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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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The story of the butterfly:
"I was in Bogota and waiting for a lady friend. I was in love,
a long time ago. I waited three days. I was hungry but could not go
out for food, lest she come and I not be there to greet her. Then, on
the third day, I heard a knock."
"I hurried along the old passage and there, in the sunlight,
there was nothing."
"Just," Vance Joy said, "a butterfly, flying away."
-- Peter Carey, BLISS