Abstract
In Part I of this paper I attempt to present, in more or less summary fashion, some well-known difficulties in the concept of deontic morality , as shown by certain features of deontic moral discourse. I make no great claims for originality here, although perhaps there may be some virtue in the presentation and ordering. In any case, Part I is a necessary preliminary to Part II, where I attempt to defend the rationality of and the necessity for deontic language against some recent attacks