Upon awakening, a man who has dreamt of being a butterfly wonders whether he is not a butterfly dreaming of being a man. In this paradox, ontology merges with epistemology: being and knowledge cannot be separated. Indeed, all knowledge is being and is about being. As in the Socratic “Know thyself” carved on the pediment of the temple in Delphi, all we really want to know is who we are—a wish related to our infantile, and never entirely satisfied, sexual curiosity about our origins.