Graham Greene said this quote
“ He had in those days imagined himself capable of extraordinary heroisms and endurances which would make the girl he loved forget the awkward hands and the spotty chin of adolescence. Everything had seemed possible. One could laugh at daydreams, but so long as you had the capacity to daydream there was a chance that you might develop some of the qualities of which you dreamed. It was like the religious discipline: words however emptily repeated can in time form a habit, a kind of unnoticed sediment at the bottom of the mind, until one day to your own surprise you find yourself acting on the belief you thought you didn't believe in. ”