If the search for riches were sure to be successful, though I should become a groom with a whip in my hand to get them, I will do so. As the search may not be successful, I will follow after that which I love.

If you know, say you know. If you don't know, say you don't know.

Without that innate sense of human worth, a man cannot long endure adversity, nor can he long enjoy prosperity.

Because the newer methods of treatment are good, it does not follow that the old ones were bad: for if our honorable and worshipful ancestors had not recovered from their ailments, you and I would not be here today.

The Master said, "A true teacher is one who, keeping the past alive, is also able to understand the present."

Reviewing the day's lessons. Isn't it joyful? Friends come from far. Isn't it delightful? One has never been angry at other's misunderstanding. Isn't he a respectable man?

The gem cannot be polished without friction nor man without trials.