I know one billionaire family who have managed to instil a sense of proportion, industry and obligation into the various younger members: there are no private jets, chauffeurs or suchlike.

• 我认识一个亿万富翁家庭，成功地将一种分寸感、勤奋和责任感逐渐灌输给了家里的年轻一代：没有私人飞机、私人司机之类的享受。