A Dictionary of Philosophy.  Anthony Flew, ed.  London: Pan, 1979.

Blofeld, John.  Trans.  The Zen Teaching of Huang Po: On the Transmission of Mind.  New York: Grove, 1958.

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.

Dhammapada, The.  Juan Mascaro, trans.  Harmondsworth, Mx.: Penguin, 1973.

Dogen. Enlightenment Unfolds: The Essential Teachings of Zen Master Dogen.  Kazuaki Tanahashi, ed.  Boston: Shambala, 2000.

Eracle, Jean.  Enseignements du Bouddha.  Paris: Librio, 2005.

Gould, Stephen Jay.  The Lying Stones of Marrakech: Penultimate Reflections in Natural History.  London: Vintage, 2001.

Hume, David.  A Treatise of Human Nature.  Project Gutenberg E-text (Internet).

Kamalashila (Anthony Matthews).  Meditation: The Buddhist Way of Tranquility and Insight.  Birmingham: Windhorse, 1992.

Kneale, William and Martha.  The Development of Logic.  Oxford, London: Clarendon, 1962.

Suzuki, Shunryu.  Zen Mind, Beginner’s Mind.  New York: Weatherhill, 1970.

Trungpa, Chögyam.  Illusion’s Game.  Boston: Shambhala, 1994. 

Other references are mentioned in footnotes.