A good man regards the root; he fixes the root, and ail else flows out of it. The root is filial piety; the fruit brotherly love.

We should keep the dead before our eyes, and honor them as though still living

For one word a man is often deemed to be wise, and for one word he is often deemed to be foolish. We should be careful indeed what we say.

No lake so still but it has its wave. No circle so perfect but that it has its blur. I would change things for you if I could; As I can't you must take them as they are.

Future generation is the most important thing.

I do not enlighten those who are not eager to learn, nor arouse those who are not anxious to give an explanation themselves. If I have presented one corner of the square and they cannot come back to me with the other three, I should not go over the points again.

Hold faithfulness and sincerity as first principles.