William Shakespeare (1823). “The plays of William Shakspeare, pr. from the text of the corrected copies left by G. Steevens and E. Malone, with a selection of notes from the most eminent commentors by A. Chalmers”, p.343
Mark Twain (2014). “Mark Twain on Common Sense: Timeless Advice and Words of Wisdom from America's Most-Revered Humorist”, p.23, Skyhorse Publishing, Inc.