"Happel and Walter's contribution is in constructing a dialogue between a systematician and a moralist about common foundations for their respective disciplines. This is much needed in theology today and this book helps move the issue of cross-fertilization among theological specialties."
— Kenneth Himes, Chair, Theology Department, Boston College
"The project as a whole will be of interest to serious constructive theologians of all denominations.... It is daring in its scope, and I think it will provoke many important discussions."
— Robin W. Lovin, Cary M. Maguire University, Professor of Ethics, Perkins School of Theology, Dallas