Arthur Miller said this quote
“ ...he'll come back. We all come back, kate. These private little revolutions always die. The compromise is always made. In a peculiar way. Frank is right-- every man does have a star. The star of one's honesty. And you spend your life groping for it, but once it's out it never lights again. I don't think he went very far. He probably just wanted to be alone to watch his star go out. ”