We must detach ourselves from everything, and especially from ourselves, by continually thwarting our self-love. For example, a certain thing pleases us; we must leave it for the very reason that it pleases us. A certain person has injured us; we must do him good for this very reason. In a word, we must desire and not desire, exactly as God desires or does not desire, without inclination to any one thing; because we do not know that what we ourselves wish is the will of God.
–Saint Alphonsus Liguori (1696-1787)