Christian ethics, writes theologian D. Stephen Long, is the pursuit of God's goodness by people "on the way" to a city not built by human hands. The cultivation of practical wisdom that comes from diverse sources, it draws on all that is good in God's creation and among the nations. In this Very Short Introduction, Long examines these diverse sources, discusses the relationship between Christian, modern, and postmodern ethics, and explores practical issues including sex, money, and power. The book also examines some of the failures of the Christian tradition, including the crusades, the conquest, slavery, inquisitions, and the Galileo affair. Placing them in the context of the theory and practice of ethics and their historical perspective, Long notes the challenges they raise for Christian ethics. He concludes with a discussion of their implications in the modern era, considering how this affects our lives in the present age. Long recognizes the inherent difficulties in bringing together "Christian" and "ethics" but argues that this is an important task for both the Christian faith and for ethics.