Being happy but not letting go of desire, living in poverty but not being tired of ambition.

When two blades cut each other, the sharp and the blunt are the ones who know; when the two theories are connected, the right and wrong are seen.

Sincerity is a plus, gold and stone are a loss.

Knowing the past but not knowing the present is called Lu Shen; knowing the present but not knowing the past is called blindness.

Those who pick jade break stones to pull out jade, and those who select scholars abandon evil and pursue good.

If a person has knowledge and learning, he will be powerful.

If you don’t learn and know yourself, if you don’t ask and know yourself, your actions in ancient and modern times are unprecedented.

Without loyalty, one cannot stand in the world. - Cheng Yi, where sincerity comes, gold and stone will be opened.

Three feet of ice does not freeze in one day.

A debater seeks to convince people's hearts, not just people's opinions.

Wherever sincerity comes, gold and stone will open.

Wherever you are sincere, gold and stone will be opened.

Having no knowledge in your heart is like having no money in your hands.

A wonderful person cannot be harmonious, and not everyone can believe what he says.

If the chisel continues, the ditch will be deep; if the ax continues, the salary will be high.

Those who are not good in virtue cannot be far-sighted; those who are not talented cannot be broad-minded.

Nothing can be understood until it is effective, and no theory can be settled without evidence.