The (Coming) Age of Thresholding (Kluwer Academic Publishers, 1999)
Philosophy as a Guide to Living, The Great Courses: Philosophy & Intellectual History. 24-lectures Series (The Teaching Company, 2006)
Language and Being (Yale University Press, 1970)
"The Wrong of Rights: The Moral Authority of the Family," Journal of Medicine and Philosophy, Oxford Journals, Oxford University Press, 2010;.
"Is There Life after Monty Python's The Meaning of Life," Monty Python and Philosophy (G. Hardcastle and G. Reisch, eds., Open Court, 2006)
“The Space of Love and Garbage” and “On (and Beyond) Love Gone Wrong” have been reissued in a new volume, The Space of Love and Garbage and Other Essays from the Harvard Review of Philosophy (S. Phineas Upham, ed., Chicago: Open Court, 2008)
“Peace, Sustainability and Humanity: Reflections on Culture’s Future Relation to Religion,” in Proceedings of the UNESCO-sponsored International Conference on Intercultural and Interreligious Dialogue for Sustainable Development (V.K. Egorov, ed., Moscow Publishing House of the Russian Academy of Public Administration, 2008)