In teaching there should be no distinction of classes.
The man of perfect virtue, wishing to be established himself, seeks also to establish others; wishing to be enlarged himself, he seeks also to enlarge others.
The hardest thing of all is to find a black cat in a dark room, especially if there is no cat.
Straight-forwardness, without the rules of propriety, becomes rudeness.
The virtuous man is driven by responsibility, the non-virtuous man is driven by profit.
The father who does not teach his son his duties is equally guilty with the son who neglects them.