The task of making peace ... is not just a matter of realpolitik; it is a matter also of spirit. It requires us not only to deal with the practicalities of our place in the cosmic order of things. We must know who we are and what we are doing -- know not only with the intellect, but with our whole being, in the way that mystics have always achieved the knowledge that has given our species its deepest guidance.
God is the friend of silence. See how nature -- trees, flowers, grass -- grow in silence; see the stars, the moon, the sun, how they move in silence... The more we receive in silent prayer, the more we can give in our active life. We need silence to be able to touch souls. The essential thing is not what we say, but what God says to us and through us. All our words will be useless unless they come from within.