The superior man does what is proper to the station in which he is; he does not desire to go beyond this. In a position of wealth and honor, he does what is proper to a position of wealth and honor. In a poor and low position, he does what is proper to a poor and low position.

In teaching there should be no distinction of classes.

Know what you know and know that you don't know what you don't know — that is the characteristic of one who knows.

Consideration for others is the basis of a good life, a good society.

The rich fool is like a pig that is choked by its own fat.

Big head, target for enemy; big heart, target for friend.

I will not be concerned at other men's not knowing me;I will be concerned at my own want of ability.