This book was a collaborative effort of the McDonald Centre for Theology, Ethics & Public Life. Neither the book nor the Centre itself would exist without the support of Alonzo McDonald, whose generosity and vision made both possible. Al is someone who proves that the art of patronage did not go out of style in the renaissance, and thank God for that. Indeed, he is the model patron: engaged and interested, but also trusting and empowering.

The conference from which this book emerged was held in May 2011 at Christ Church, University of Oxford. It was made possible by a grant from the British Academy and the ongoing support of the McDonald Agape Foundation.

Many people made the conference possible in ways other than financial. The idea of bringing Peter Singer’s moral philosophy into conversation with Christian moral theology came originally from my long-time friend, Charles Camosy. Virginia Dunn was the administrative coordinator for the entire event; without her efficiency and organization, the conference would have lacked speakers, attendees, lunch, and wine. Nigel Biggar, who directs the McDonald Centre, provided wise guidance throughout.

The book is dedicated to all my friends, colleagues, and students in Oxford, with thanks for five unforgettable years.