Socrates, Plato, Aristotle (1967). “Wit and Wisdom of Socrates, Plato, Aristotle: Being a Treasury of Thousands of Glorious, Inspiring and Imperishable Thoughts, Views and Observations of the Three Great Greek Philosophers, Classified Under about Four Hundred Subjects for Comparative Study”
Edmund Burke, James BURKE (Barrister-at-Law.) (1854). “The Speeches of the Right Hon. Edmund Burke, with Memoir and Historical Introductions. By James Burke”, p.75