James Weldon Johnson, Sondra K. Wilson (1995). “The Selected Writings of James Weldon Johnson: Social, political, and literary essays”, p.352, Oxford University Press on Demand
Charles Haddon Spurgeon (1988). “Spurgeon at His Best: Over 2200 Striking Quotations from the World's Most Exhaustive and Widely-read Sermon Series”, Baker Publishing Group
Ambrose Bierce (2011). “Ambrose Bierce: The Devil's Dictionary, Tales, and Memoirs: The Devil's Dictionary, Tales, and Memoirs”, p.743, Library of America