The legitimacy of prophetic moral discourse, I believe, is without question. It is not, however, sufficient as moral discourse. It undercuts preoccupation with meager thinking about means to short-range ends.... It does not concern itself with incremental choices that have to be made by persons and institutions in which good and evil are intricately intermingled.

p. 55 - "Varieties of Moral Discourse: Prophetic, Narrative, Ethical and Policy"