In teaching there should be no distinction of classes.

Study as though you cannot catch up to it, and as though you fear you are going to lose it.

The superior man honors his virtuous nature, and maintains constant inquiry and study, seeking to carry it out to its breadth and greatness, so as to omit none of the more exquisite and minute points which it embraces, and to raise it to its greatest height and brilliancy.

True knowledge is when one knows the limitations of one's knowledge.

Ask yourself constantly, "What is the right thing to do?" Behave toward everyone as if receiving a great guest.

The only people who cannot change are the most wise and the most stupid.

It's only in winter that the pine and cypress are known to be evergreens.