God alone can satisfy our desires… It is not very intelligent to desire what can never satisfy. While enjoying wealth, you keep searching for something you still lack. You run back-and-forth from one pleasure to another, becoming tired, but never satisfied… Eventually we will come to say to God, “Whom have I in heaven but you? And earth has nothing I desire besides you.” Anything else is doomed to failure.
–Saint Bernard of Clairvaux (1090-1153)