When you know a thing, to hold that you know it, and when you do not know a thing, to allow that you do not know it - this is knowledge.

The superior man sets his person at rest before he moves; he composes his mind before he speaks.

We should not be too familiar with the lower orders or with women.

People with virtue must speak out; People who speak are not all virtuous.

Which demands a lot of himself and some others, will be free from hatred.

It is goodness that gives to a neighborhood its beauty. One who is free to choose, yet does not prefer to dwell among the good - how can he be accorded the name of wise?

Friendship with the upright, with the truthful and with the well informed is beneficial. Friendship with those who flatter, with those who are meek and who compromise with principles, and with those who talk cleverly is harmful.