By exhaustively examining one's own mind,one may understand his nature.One who understands his own nature understands Heaven.

To act without clear understanding, to form habits without investigation, to follow a path all one's life without knowing where it really leads; such is the behavior of the multitude.

To lay hold of the mean without taking into account the occasion is like grasping one thing only.

People are eager to comment on something when they themselves are not in the situation of doing it.

I dislike death, however, there are some things I dislike more than death. Therefore, there are times when I will not avoid danger.

Listen to a man's words and look at the pupil of his eye. How can a man conceal his character?

Is it only the mouth and belly which are injured by hunger and thirst? Men's minds are also injured by them.