He who, conscious of being strong, is content to be weak, he shall be the paragon of mankind. Being the paragon of mankind, Virtue will never desert him. He returns to the state of a little child.
The master does his job and then stops. He understands that the universe is forever out of control, and that trying to dominate events goes against the current of the Tao.
There is no greater sin than desire, No greater curse than discontent, No greater misfortune than wanting something for oneself. Therefore he who knows that enough is enough will always have enough.