Ambrose of Milan (340-397) was the first Christian bishop to write a systematic account of Christian ethics, in the treatise De Officiis, variously translated as "on duties" or "on responsibilities." But Ambrose also dealt with the moral life in other works, notably his sermons on the patriarchs and his addresses to catechumens and newly baptized. There is a vast modern literature on Ambrose, but only in recent decades has he begun to be taken...