*Professor Nigel Biggar*, CBE, is Regius Professor Emeritus of Moral Theology and Director of the McDonald Centre for Theology, Ethics, and Public Life at the University of Oxford. Described as “one of the leading living Western ethicists” (John Gray, New Statesman, 25 November 2020), he is the author of In Defence of War (Oxford, 2013) and What’s Wrong with Rights? (Oxford, 2020). William Collins will publish his next book, Colonialism: A Moral Reckoning, in February 2023.