If a man keeps cherishing his old knowledge,so as continually to be acquiring new,he may be a teacher of others.温故而知新,可以为师矣。Of all people,girls and servants are the most difficult to behave to.If you are familiar with them?they lose their humility.If you maintain a reserve towards them,they are discontented.唯女子与小人,为难养也。近之则不逊,远之则怨。