"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."

"The Master said, 'If the will be set on virtue, there will be no practice of wickedness.'"

"Attack the evil that is within yourself, rather than attacking the evil that is in others."

"The superior man understands what is right; the inferior man understands what will sell."

"The Master said, 'What is the highest wisdom? To know men.'"