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.

If the impulse to daring and bravery is too fierce and violent, stay it with guidance and instruction.

Sacrifices are concerned with the feelings of devotion and longing.

Therefore, a person should first be changed by a teacher's instructions, and guided by principles of ritual. Only then can he observe the rules of courtesy and humility, obey the conventions and rules of society, and achieve order.

Mencius said that human nature is good. I disagree with that.

Man's nature is evil; goodness is the result of conscious activity.

If the blood humor is too strong and robust, calm it with balance and harmony.