When young, beware of fighting; when strong, beware of sex; and when old, beware of possession.

I know how the birds fly, how the fishes swim, how animals run. But there is the Dragon. I cannot tell how it mounts on the winds through the clouds and flies through heaven. Today I have seen the Dragon.

The superior person is in harmony, but does not follow the crowd. The lesser person follows the crowd, but is not in harmony.

In antiquity men studied for their own sake; nowadays men study for the sake of impressing others.

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?

A youth is to be regarded with respect.

There is nothing impossible in all the world except that the heart of man is wanting in resolution.