Abstract
Distinctions are set in obscurity and imagination. Distinctions are not made anywhere and anytime, nor are they made in no place and at no time; they are made in a situation in which they are called for. Distinctions push against an obscurity that needs the distinction in question. In the story about Jack and the doctor, the obscurity against which the distinction is made is included as part of the story; in the quotation from Chaucer the obscurity that provides the setting for the distinction is not mentioned—although you would find it if you were to read the Wife of Bath’s tale—but it is easy for us to imagine a setting in which the distinction between counseling and commandment ought to be made. When we entertain a distinction, such as "counseling is not commandment," "ignorance is not negligence," or "medical data is not medical care," we always experience or imagine an obscurity against which the distinction arises. When we think philosophically about executing distinctions, we must pay attention to the obscurity that lets the distinction occur.