Better stop short than fill to the brim. Oversharpen the blade, and the edge will soon blunt. Amass a store of gold and jade, and no one can protect it.
The mark of a moderate man is freedom from his own ideas. Tolerant like the sky, all-pervading like sunlight, firm like a mountain, supple like a tree in the wind, he has no destination in view and makes use of anything life happens to bring his way.
Some help others in order to receive blessings and admiration. This is simply meaningless. Some cultivate themselves in part to serve others, in part to serve their own pride. They will understand, at best, half of the truth. But those who improve themselves for the sake of the world - to these, the whole truth of the universe will be revealed.