The Essence of Knowledge is, having it, to use it.

Time flows away like the water in the river.

We can know a person by observing his behaviour, understanding the reasons for his actions and ascertaining his intentions. If we do this, how can we not know him?

In old days men studied for the sake of self-improvement; nowadays men study in order to impress other people.

The superior man undergoes three changes. Looked at from a distance, he appears stern; when approached, he is mild; when he is heard to speak, his language is firm and decided.

Man who want pretty nurse, must be patient.

A scholar who loves comfort is not fit to be called a scholar.