ABSTRACT
This chapter explains from Ryle's view that one knows about one's own self, or mind, by observing one's own behaviour and the like. It also examines and rejects some of the major theories about the nature of mind and connected with it the introspection theory of self-knowledge and also the nature of personal identity. The virtue of the bundle theory over the substance theory is supposed to be that it sticks to what is empirically given, and does not posit unobservable entities. The chapter focuses on the basis idea that one must employ a criterion of identity for asserting first person identity judgments lies in the fact that the first person identity judgments are like other identity judgments of things, or other persons. One of the immediate objections to regarding memory as a criterion of personal identity was pointed out by B. A. O. Williams.
