Pt. 1. Philosophy and human conduct -- Moral freedom in a determined world -- The ethical theory of John Dewey -- pt. 2. The new failure of nerve -- Religion and the intellectuals -- An open letter to Sidney Hook: A defence of religious faith by Ernest van den Haag -- Neither myth nor Utopia: a rejoinder -- Modern knowledge and the concept of God -- Two types of existentialist religion and ethics -- pt. 3. The quest for "being" -- Naturalism and first principles -- Nature and the human spirit -- Scientific knowledge and philosophical "knowledge" -- Materialism and idealism -- Appendix Are religious dogmas cognitive