Lovatt takes up Niebuhr"s theology and presents it to be, at its heart, an attempt to grapple with the most powerful and dangerous aspect of human nature: a quality Niebuhr describes as "the will-to-power". The author argues that Niebuhr identifies the fundamental nature of human sin as having very specific qualities and that Niebuhr, over his various works, develops a theology that seeks to deal effectively with this quality.