Adolf Hitler (1942). “The Speeches of Adolf Hitler, April 1922-August 1939: An English Translation of Representative Passages Arranged Under Subjects and Edited by Norman H. Baynes”
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”