Abstract

If nowadays categories seems to cover a multitude of different enquiries, we can see some continuity and coherence among them, and we can get some sense of what the subject is, by going back to the first treatise to receive the name, the Categories of Aristotle. The scheme of categories worked out by Aristotle in that book was used by him in subsequent works to solve a variety of problems. On one plausible hypothesis, Aristotle’s scheme was partly shaped by ontological considerations. However, one can construct categorial schemes that are free of ontological assumptions, and I call such schemes and the principles on which they are constructed “pure.” A purified Aristotelian scheme is one of a multiplicity of categorial schemes that can be generated by a sufficiently general pure categorial principle. In the penultimate section of this paper I consider a useful scheme, generated in this way, that categorizes the elements of our discourse about discourse. This links up with J. L. Austin’s discussion of the nature of illocutionary acts and throws light on the interconnections between such problematic notions as sentence, meaning, and proposition.