Bergson Henry. An Introduction to Metaphysics. Transl. T.E. Hulme. Indianapolis:The Bobbs-Merrill Company, Inc, 1955
Bolte Tayler, Jill. My Stroke of Insight. London: Hodder and Stoughton, 2008
Buber, Martin. I and Thou. Transl. Ronald Gregor Smith. New York: Macmillan Publishing Company,1958
Classics of Western Philosophy. ed. Steven Cahn. Indianapolis, Cambridge: Hacket Publishing Company,1977
Frankl, Viktor E. Man's Search for Meaning. Boston:Beacon Press, 2006
Gaon, Saadiah. The Book of Beliefs and Opinion. transl. Samuel Rosenblatt. New Haven and London: Yale University Press, 1976
Hawking, Stephen. A Brief history of Time. Bantam, 1998
Heschel, Abraham Joshua. God in Search of Man; A Philosophy of Judaism. New York: Farrar, Straus and Giroux, 1983
James, William. The Will to Believe, Human Immortality and other Essays of Popular Philosophy. Dover Publications, 1956
Jewish Perspectives on the Experience of Suffering. ed. Shalom Carmy. New Jersey and Jerusalem: Jason Aronson.1999
Johnson, Paul. A History of the Jews. Harper Perennial, 1988
Jonathan Sacks. Radical Then Radical Now. Continuum, 2000
Levi Ben Gershom. The Wars of the Lord. transl. Seymour Feldman. Philadelphia: The Jewish Publication Society of America, 1984
Maimonides, Moses. The Guide of the Perplexed. Transl. Sholom Pines. Chicago and London:University of Chicago Press, 1963
Otto, Rudolph. The Idea of the Holy. London, Oxford, New York: Oxford University Press, 1958
Shanks, Hershel. “Losing Faith: How Scholarship Affects Scholars” Biblical Archaelogy Review, March/April 2007
Soloveitchik, Joseph Dov. Be'Sod Ha'Yachid Ve'Hayachad ed. Pinchas H. Pelhi. Jerusalem: Orot Publishing, 1936
Wiesel, Elie. All Rivers Run to the Sea. New York: Schocken Books, 1995
Bibliography for Reasonable Doubts: