Don't use cannon to kill musquito.

It was by music that the ancient kings gave elegant expression to their joy. By their armies and axes they gave the same to their anger.

Heaven is author of the virtue that is in me

If you look into your own heart, and you find nothing wrong there, what is there to worry about? What is there to fear?

To know that one knows what one knows, and to know that one doesn't know what one doesn't know, there lies true wisdom.

To know is to know that you know nothing. That is the meaning of true knowledge.

The superior man, extensively studying all learning, and keeping himself under the restraint of the rules of propriety, may thus likewise not overstep what is right.