The power of the prayer

I constantly commend myself to the mercy of God. Those freethinkers who say that the prayer is of no use do not know what they are talking about. I know that after praying to God I always felt stronger; and that is enough to prove its usefulness, whether the increase in strength comes directly from God or is a physical result of one's confidence in him.

Giacomo Casanova - History of my life (4, 13)