I once tried thinking for an entire day, but I found it less valuable than one moment of study.

If the quickness of the mind and the fluency of the tongue are too punctilious and sharp, moderate them in your activity and rest.

In antiquity the sage kings recognized that men's nature is bad and that their tendencies were not being corrected and their lawlessness controlled.

Now it is human nature to want to eat to ones fill when hungry, to want to warm up when cold, to want to rest when tired. These all are a part of people's emotional nature.

I once tried standing up on my toes to see far out in the distance, but I found that I could see much farther by climbing to a high place.

A person is born with feelings of envy and hate. If he gives way to them, they will lead him to violence and crime, and any sense of loyalty and good faith will be abandoned.

When a man sees something desirable, he must reflect on the fact that with time it could come to involve what is detestable. When he sees something that is beneficial, he should reflect that sooner or later it, too, could come to involve harm.