Knowledge is recognizing what you know and what you don't.

A man of wisdom delights in water.

If I hold up one corner of a square and the student cannot workout the other three for himself, I won't go any further.

There are three degrees of filial piety. The highest is being a credit to our parents, the second is not disgracing them; the lowest is being able simply to support them.

The Way is not for, but from, man; if we take the Way as something superhuman, beyond man, this is not the real Way.

Reviewing the day's lessons. Isn't it joyful? Friends come from far. Isn't it delightful? One has never been angry at other's misunderstanding. Isn't he a respectable man?

I do not want a friend who smiles when I smile, who weeps when I weep; for my shadow in the pool can do better than that.