
Source: Aphorisms and Reflections (1901), p. 215
Letter to Hester Thrale (5 July 1783) http://books.google.com/books?id=8JuiYLGldcsC&pg=PA169&lpg=PA169&dq=%22samuel+johnson%22+few+attacks+ridicule+invective+noise+provoke&source=web&ots=HMST_SM18L&sig=xovCcC2lKiTX9V0p61QvIC_yHW0&hl=en&sa=X&oi=book_result&resnum=1&ct=result
Source: Aphorisms and Reflections (1901), p. 215
§ 336
Agni Yoga (1929)
Source: 2000s, Wars of Blood and Faith: The Conflicts That Will Shape the Twenty-First Century (2007), p. 333
Wood, Christopher. "Terrible Hard", Says Alice. London: Constable. 1970. (chapter 13)
Source: The Art of Scientific Investigation (1950), p. 65.
Source: Don't Start the Revolution Without Me! (2008), Ch. 11 (p. 212)
New York Times (2 February 1986).