Bird in hand makes it harder to blow nose.

The superior man cannot be known in little matters, but he may be entrusted with great concerns. The small man may not be entrusted with great concerns, but he may be known in little matters.

A good man will certainly also possess courage; but a brave man is not necessarily good.

Study as though you cannot catch up to it, and as though you fear you are going to lose it.

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?

Excess weakens the spirits.

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