In 1986, Dr. Geisler publicly debated the author of the Humanist Manifesto II, [[Paul Kurtz]].<ref>http://www.normgeisler.com/about/default.htm</ref> | In 1986, Dr. Geisler publicly debated the author of the Humanist Manifesto II, [[Paul Kurtz]].<ref>http://www.normgeisler.com/about/default.htm</ref> |