"To be able to practice five things everywhere under heaven constitutes perfect virtue... gravity, generosity of soul, sincerity, earnestness, and kindness."

"If names be not correct, language is not in accordance with the truth of things. If language be not in accordance with the truth of things, affairs cannot be carried on to success."

"He who knows all the answers has not been asked all the questions."

"The gentleman reveres three things. He reveres the mandate of Heaven; he reveres great people; and he reveres the words of sages."

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