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.
There are three things which the superior man guards against. In youth ... lust. When he is strong ... quarrelsomeness. When he is old ... covetousness.
The master said, 'Quietly to store up knowledge in my mind, to learn without flagging, to teach without growing weary, these present me with no difficulties.'