Future generation is the most important thing.

Only one who bursts with enthusiasm do I instruct; Only one who bubbles with excitement do I enlighten. If I hold up one corner and you do not come back to me with the other three, I do not continue the lesson.

Everything has its beauty but not everyone sees it. To see it a person only needs to imagine how it could be worse.

To study and constantly, is this not a pleasure? To have friends come from far away places, is this not a joy? If people do not recognize your worth, but this does not worry you, are you not a true gentleman?

Before you embark on a journey of revenge, dig two graves.

All wisdom is rooted in learning to call things by the right name. When things are properly identified, they fall into natural categories and understanding becomes orderly.

A superior man in dealing with the world is not for anything or against anything. He follows righteousness as the standard.