James M Gustafson has been a leading and formative figure in the field of Christian ethics over the past fifty years. His many contributions to theological ethics have helped to define and shape ethical thinking by Christians who reflect on great moral issues. Gustafson's work must be dealt with by all students in this discipline, and his perceptive insights have given clarity and guidance to the process of moral discernment. The essays collected here are ones that have significantly impacted discussions and debates over recent decades.