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.
He who remembers from day to day what he has yet to learn, and from month to month what he has learned already, may be said to have a love of learning.
The way of Heaven and Earth may be completely declared in one sentence: They are without any doubleness, and so they produce things in a manner that is unfathomable.