The Master said, At fifteen I set my heart upon learning. At thirty, I had planted my feet firm upon the ground. At forty, I no longer suffered from perplexities. At fifty, I knew what were the biddings of Heaven. At sixty, I heard them with docile ear. At seventy, I could follow the dictates of my own heart; for what I desired no longer overstepped the boundaries of righ.

Faced with what is right, to leave it undone shows a lack of courage.

Not to mend one's ways when one has erred is to err indeed.

A father's and a mother's age must be borne in mind; with joy on the one hand, fear on the other.

Don't do unto others what you don't want others to do unto you.

In ancient times, those who wished to illuminate the world with virtue first brought order to their nations. Wishing to order well their nations, they first harmonized their families. Wishing to harmonize their families, they first cultivated themselves. Wishing to cultivate themselves, they first rectified their minds. Those who wished to rectify their minds first made their intentions sincere.

People with virtue must speak out; People who speak are not all virtuous.