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By Carl Sagan; January 9, 1994 - 30 years ago today - WITH SCIENCE ON OUR SIDE
(www.washingtonpost.com)
Carl Sagan was a humanist who strived to teach science as a way of thinking and interpreting the world. His 1995 book The Demon-Haunted World: Science as a Candle in the Dark was a kind of message he left to humanity before he died of cancer.