Paul Vitz is the Professor Emeritus of Psychology at New York University. He is a Catholic scholar, whose work explores the relationship between psychology and Christian faith. He has recently edited a book, The Complementarity of Women and Men: Philosophy, Theology, Psychology & Art, with contributions from some leading Catholic voices in the conversation: J Budziszewski, Sr Prudence Allen, Deborah Savage, and Elizabeth Lev. He joins me to discuss the book and the differences and relation between the sexes more generally.