Thomas Jefferson, H. A. Washington (2011). “The Writings of Thomas Jefferson: Being His Autobiography, Correspondence, Reports, Messages, Addresses, and Other Writings, Official and Private”, p.32, Cambridge University Press
Joseph Addison (1794). “Interesting Anecdotes, Memoirs, Allegories, Essays, and Poetical Fragments: Tending to Amuse the Fancy, and Inculcate Morality”, p.286