William Shakespeare (2012). “Comedies of Shakespeare in Plain and Simple English (a Modern Translation and the Original Version)”, p.1547, BookCaps Study Guides
Edmund Burke (1868). “Reflections on the Revolution in France and on the Proceedings in Certain Societies in London Relative to that Event: 1790”, p.161
Robin Sharma (2006). “The Greatness Guide: One of the World's Most Successful Coaches Shares His Secrets for Personal and Business Mastery”, p.51, Jaico Publishing House