Bacon, Francis. Novum Organum (1620). Trans. R. Ellis & James Spedding. London: Routledge, 1880 (date of publ. guessed, as not given).
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.
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).
Kapleau, Philip. The Three Pillars of Zen: Teaching, Practice and Enlightenment. New York: Anchor, 1989.
Kneale, William and Martha. The Development of Logic. Oxford, London: Clarendon, 1962.
Magee, Bryan. The Great Philosophers: An Introduction to Western Philosophy. Oxford: Oxford, 1987.
Mill, John Stuart. A System of Logic (1843). 8th ed. New York: Harper Bros, 1882.
Yourgrau, Palle. A World Without Time: The Forgotten Legacy of Gödel and Einstein. New York: Basic, 2005.
(The above list is not meant as a bibliography, but simply details the books referred to within the text.)