In this lecture, Béatrice Longuenesse examines Elizabeth Anscombe’s analysis of our use of the first-person pronoun ‘I’ and its relation to self-consciousness. Longuenesse argues that Anscombe’s account receives unexpected support from a philosophical approach which is very different from hers: Jean-Paul Sartre’s phenomenological description of consciousness, self-consciousness, and their expression in our use of ‘I.’ Anscombe’s characterization of self-consciousness as the non-observational, non-inferential, “unmediated conception of actions, happenings and states” is close to Sartre’s characterization of what he calls “non-thetic” or “non-positional” self-consciousness.