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" "I have spent too much of my life opening doors for cats — I once calculated that, since the dawn of civilization, nine hundred and seventy-eight man-centuries have been used up that way. I could show you figures.
Robert Anson Heinlein (7 July 1907 – 8 May 1988) was one of the most popular, influential, and controversial authors of science fiction of the 20th Century.
Biography information from Wikiquote
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