"But we must always remember that when we are born we need a great deal of love in order to persuade us to stay in life. Once we get that love it usually lasts us. But the universe is a pretty cold place. It is we who invest it with our feelings. And under certain conditions, we feel the thing isn’t worth it any more."
January 1, 1970
https://en.wikiquote.org/wiki/Crimes_and_Misdemeanors