"Life is not a miracle. It is a natural phenomenon, and can be expected to appear whenever there is a planet whose conditions duplicate those of the earth. ... [My study of the universe] leaves little doubt that life has occurred on other planets. I doubt if the human race is the most intelligent form of life."
-- Harold Urey (chemist, 1893-1981)
http://en.wikipedia.org/wiki/Harold_Urey
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