It might be thought at first glance that if there is a question we would be able to address from our own experience, which gets to our core and from which we should be able to draw a definite answer, it could be following: Who am I? Because even if we are not prepared to say anything about the world and the lives of others, presumably we would at least be tempted to think that we have enough resources for determining what makes us who we are. But formulating a satisfactory answer to this question has since ancient times eluded the most inquisitive and insightful minds. Indeed, it is no accident that the motto inscribed above the entrance to the oracle at Delphi was "Know thyself," puzzling figures of the stature of Socrates. It can be gathered, from the vast literature that this question has given rise to, that no small inquiry would settle it.
