He who claims to be sure of something for which there is no evidence is a fool, and he who acts on the basis of what cannot be proved is an imposter.

By looking at a person's features, clothing, and speech, even Confucius would not be able to say what sort of a person he is. But by testing him in a position and seeing what he he does, even someone with so-so judgment would be able to know if he is wise or not.

It is not difficult to know a thing; what is difficult is to know how to use what you know

It is dangerous for a ruler to trust others. He who trusts others can be manipulated by others.

No benefit is more constant than simplicity; no happiness more constant than peace.

In dealing with those who share his bed, the enlightened ruler may enjoy their beauty but should not listen to their special pleas.

Claiming certainty without corroborating evidence is stupid.