" The only really valuable religious and moral training I ever got as a child came to me from my father, not systematically, but here and there and more or less spontaneously, in the course of ordinary conversations. Father never applied himself, of set purpose, to teach me religion. But if something spiritual was on his mind, it came out more or less naturally. And this is the kind of religious teaching, or any other kind of teaching, that has the most effect. "A good man out of the good treasure of his heart, bringeth forth good fruit; and an evil man out of the evil treasure bringeth forth that which is evil. For out of the abundance of the heart the mouth speaketh." And it is precisely this speech "out of the abundance of the heart" that makes an impression and produces an effect in other people. We give ear and pay at least a partially respectful attention to anyone who is really sincerely convinced of what he is saying, no matter what it is, even if it is opposed to our own ideas. "

― Thomas Merton , The Seven Storey Mountain