" This very heart which is mine will forever remain indefinable to me. Between the certainty I have of my existence and the content I try to give to that assurance, the gap will never be filled. Forever I shall be a stranger to myself. In psychology as in logic, there are truths but no truth. Socrates’ “Know thyself” has as much value as the “Be virtuous” of our confessionals. They reveal a nostalgia at the same time as an ignorance. They are sterile exercises on great subjects. They are legitimate only in precisely so far as they are approximate. "

― Albert Camus , The Myth of Sisyphus and Other Essays