(p. 239) If we were to eliminate from science all the great discoveries that had come about as the result of mistaken hypotheses or fluky experimental data, we would be lacking half of what we now know (or think we know). –NATHAN KLINE, AMERICAN PSYCHIATRIST
Nathan Kline as quoted in Meyers, Morton A. Happy Accidents: Serendipity in Modern Medical Breakthroughs. New York: Arcade Publishing, 2007.