“When a person should be spoken with, and you don't speak with them, you lose them. When a person shouldn't be spoken with and you speak to them, you waste your breath. The wise do not lose people, nor do they waste their breath.”

“When you have faults, do not fear to abandon them.”

“Not to discuss with a man worthy of conversation is to waste the man. To discuss with a man not worthy of conversation is to waste words. The wise waste neither men nor words.”

“When you see a good person, think of becoming like her/him. When you see someone not so good, reflect on your own weak points.”

“When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it--this is knowledge.”

“Don't do unto others what you don't want done unto you.”

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