Arnold Bennett (2013). “How to Live on Twenty-Four Hours a Day: The Secret Edition - Open Your Heart to the Real Power and Magic of Living Faith and Let the Heaven Be in You, Go Deep Inside Yourself and Back, Feel the Crazy and Divine Love and Live for Your Dreams”, p.30, Lulu Press, Inc
Peter Marshall (1949). “Prayers Offered by the Chaplain, the Rev. Peter Marshall, D.D.: At the Opening of the Daily Sessions of the Senate of the United States During the Eightieth and Eighty-first Congress 1947-1949”