- The Structure of Scientific Revolutions, by Thomas S. Kuhn
- John Stuart Mill on Liberty
- The Story of Civilization, by husband and wife Will and Ariel Durant
- The Decline of the West, by Oswald Spengler, H. Stuart Hughes
- The Lucifer Effect: Understanding How Good People Turn Evil, by Philip Zimbardo
- Civilization and Its Discontents, by Sigmund Freud
- de L'Égalite Des Races Humaines: Anthropologie Positive, by Joseph-Anténor Firmin
- Future Shock, by Alvin Toffler
- Plato's Theory of Knowledge: The Theatetus and the Sophist, by Plato
- Great Books of the Western World (series of books originally published in the United States in 1952, by Encyclopædia Britannica, Inc.
- Ethics, by Spinoza
- Existentialism and Humanism, by Jean-Paul Sartre
- The Virtue of Selfishness: A New Concept of Egoism, by Ayn Rand and Nathaniel Branden
- Principles of Human Knowledge, by George Berkeley
- The Republic is a Socratic dialogue, by Plato
- Atlas Shrugged, by Ayn Rand
- The Third Wave, by Alvin Toffler
***********************************
