Cartesians and Lichtenbergians have diverging views of the deliverances of introspection. According to the Cartesians, a rational subject, competent with the relevant concepts, can come to know that he or she thinks – hence, that he or she exists – on the sole basis of his or her introspective awareness of his or her conscious thinking. According to the Lichtenbergians, this is not possible. This paper offers a defence of the Lichtenbergian position using Peacocke and Campbell's recent exchange on Descartes'scogitoas (...) a framework for discussion. A thought-experiment will be presented involving two communities with radically different conceptions of the metaphysics of the self. The purpose of the thought-experiment is to suggest that a substantive metaphysical thesis, whose truth cannot be a priori known, is presupposed by any justified transition from one's introspective awareness of a certain mental activity to the self-ascription of that activity. (shrink)

Subjects have various ways of thinking about themselves. Here are three examples: a subject can think of herself under an appropriate description (the hiker), d.

It is an extraordinary thing that Descartes' famous Cogito argument is still being puzzled over; this paper is another fragment in an untiring tradition of puzzlement. The paper will argue that, if I were to ask the question the Cogito could provide for a positive answer. In particular, my aim in this is to argue, in opposition to recent discussion by John Campbell, that there is a way of construing conscious thinking on which the Cogito can be seen to provide (...) a non-question begging argument for one's own existence. (shrink)