The good man is the teacher of the bad, And the bad is the material from which the good may learn. He who does not value the teacher, Or greatly care for the material, Is greatly deluded although he may be learned. Such is the essential mystery.
LaoziGoing back to the origin is called peace; it means reversion to destiny. Reversion to destiny is called eternity. Those who know eternity are called enlightened.
Laozi