"No, truly, despair is not something which only occurs in adolescents, something one grows out of with no further ado--'as one outgrows illusion'. Though people don't do that either, even though they are foolish enough to think they do. On the contrary, one quite often comes upon men and women and elderly people who have illusions just as childish as those of any adolescent. But what is ignored is that there are essentially two forms of illusion: that of hope and that of recollection. The adolescent's illusion is that of hope, that of the adult recollection."
-The Sickness unto Death, Søren Kierkegaard