If language is not correct, then what is said is not what is meant; if what is said is not what is meant, then what must be done remains undone; if this remains undone, morals and art will deteriorate; if justice goes astray, the people will stand about in helpless confusion. Hence there must be no arbitrariness in what is said. This matters above everything.

If doing what ought to be done be made the first business and success a secondary consideration--is not this the way to exalt virtue?

Knowledge is merely brilliance in organization of ideas and not wisdom. The truly wise person goes beyond knowledge.

The gentleman desires to be halting in speech but quick in action.

Reviewing what you have learned and learning anew, you are fit to be a teacher.

Unify your attention. Do not listen with your ears, but with your mind. Do not listen with your mind but with your essence.

Heaven gives long life to the just and the intelligent.