Martin Farquhar Tupper (1857). “Complete poetical works: containing: Proverbial philosophy, A thousand lines, Hactenus, Geraldine, and miscellaneous poems. With a portrait of the author”, p.90
J. Robert Oppenheimer's letter to his brother Frank Oppenheimer (October 14, 1929), as quoted in "Robert Oppenheimer: Letters and Recollections" edited by Alice Kimball Smith (p. 136), 1995.
William Penn (1726). “A Collection of the Works of William Penn: To which is Prefixed a Journal of His Life, with Many Original Letters and Papers Not Before Published”, p.855