I recently got a quarterly bill from the university for my spring term class. Anyone who has paid a tuition bill will connect with this story:
Some philosophers once visited an elder. After offering a prayer the elder remained silent. He braided a cord and paid them no attention. The philosophers besought him, saying, "Say something to us, father," but the old man held his peace.
They said to him, "This is what we came for, to hear you say something and to benefit from it." The old man said to them, "You spend your money to learn how to speak. I left the world to learn how to keep silent." They were filled with amazement on hearing this and went their way edified.