"The superior man is easy to serve but difficult to please; the inferior man is difficult to serve but easy to please."

"A man without constancy cannot be a diviner or a physician."

"The gentleman is at ease without being proud; the small man is proud without being at ease."

"The Master said, 'He who offends against Heaven has none to whom he can pray.'"

"To know what you know and what you do not know, that is true knowledge."