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" "in intelligence work we have to go by capabilities, not by intentions. If a potential enemy can do something to you, you have to prepare for it, without regard to what you think he wants to do.
Laurence van Cott Niven (born 30 April 1938) is an American science fiction author, most famous as the author of Ringworld (1970), his "Known Space" stories, and Niven's laws.
Biography information from Wikiquote
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