
alt.fan.pratchett (30 May 1998) http://groups.google.com/group/alt.fan.pratchett/msg/31c9fbae84e0fc8c
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Paragraph 78 (p. 13 of Welcome to the Monkey House)
Welcome to the Monkey House (1968), "Harrison Bergeron" (1961)
alt.fan.pratchett (30 May 1998) http://groups.google.com/group/alt.fan.pratchett/msg/31c9fbae84e0fc8c
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Statement of 1965, as quoted without citation of a specific work in Isaac Asimov’s Book of Science and Nature Quotations (1988), edited by Asimov and Jason A. Shulman, p. 233 https://archive.org/details/BookOfScienceAndNatureQuotations-IsaacAsimov
General sources
Discussing the result of an experiment where about 1 out of 8000 alpha particles were scattered backwards when fired at a thin sheet of metal foil, which led to the discovery of the atomic nucleus, as quoted in Rutherford and the Nature of the Atom (1964) by E. N. da C. Andrade, p. 111, and in Nobel Laureates in chemistry, 1901-1992 http://books.google.com/books?id=jEy67gEvIuMC&lpg=PP1&pg=PA57#v=onepage&q&f=false by Laylin K. James, p. 57
Context: It was quite the most incredible event that has ever happened to me in my life. It was almost as incredible as if you fired a 15-inch shell at a piece of tissue paper and it came back and hit you.
“Ninety percent of them [artists in general] are forgotten ten minutes after they’re dead.”
1941 - 1967
Source: a letter to Margaret McKellar, 14 November 1965; as quoted in Edward Hopper, Gail Levin, Bonfini Press, Switzerland 1984