"The Genius of Christianity". Book by François-René de Chateaubriand, Part I, Book VI, Chapter V. Translated by Charles I. White, D.D. Baltimore: John Murphy, 1871, p. 202, 1802.
Brother Lawrence (of the Resurrection), Joseph de Beaufort (1874). “Brother Lawrence: The Practice of the Presence of God the Best Rule of a Holy Life, Being Conversations and Letters of Nicholas Herman of Lorraine (Brother Lawrence).”, p.62, New York ; Chicago ; Toronto : F.H. Revell