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.
Laoziheaven is eternal, earth everlasting. they endure this way because they do not live for themselves. in the same way, the wise person puts himself last, and thereby finds himself first, holds himself outside, and thereby remains at the center, abandons himself, and is thereby fulfilled.
Laozi