Anonymous. The Dhammapada. London: Penguin, 1973.
Bodhidharma. The Zen Teaching of Bodhidharma. Red Pine, trans. New York: North Point, 1989.
Cheng, Hsueh-li. Empty Logic: Madhyamika Buddhism from Chinese Sources. Delhi: Motilal Banarsidass, 1991.
Curtis, Helena and N. Sue Barnes. Invitation to Biology. 4th ed. New York: Worth, 1985.
Dogen. Enlightenment Unfolds: The Essential Teachings of Zen Master Dogen. Kazuaki Tanahashi, ed. Boston: Shambala, 2000.
H.L.A. Hart and A.M. Honoré. Causation In The Law. Oxford: Clarendon, 1959.
Hume, David. A Treatise of Human Nature. Project Gutenberg E-text (Internet).
Johnson, Paul. A History of the Jews. New York: Harper, 1987.
Kahan, Rabbi Aharon Yisroel. Taryag Mitzvos. New York: Keser Torah, 1987.
Kamalashila (Anthony Matthews). Meditation: The Buddhist Way of Tranquility and Insight. Birmingham: Windhorse, 1992.
Lichtenstein, Aaron. The Seven Laws of Noah. New York: Berman, 1981.
Ortega y Gasset, José. The Origin of Philosophy. Trans. Toby Talbot. New York: Norton, 1967.
Rand, Ayn. Atlas Shrugged. 1957. New York: Signet, 1959.
Steinsaltz, Adin. The Thirteen Petalled Rose: A Discourse on the Essence of Jewish Existence and Belief. Expanded ed. Trans. Yehuda Hanegbi. New York: Basic, 2006.
Suzuki, D.T. Essays in Zen Buddhism, First Series. London: Rider, 1970.