《汉书·传·楚元王传》
善不可以不传给子孙，这是因为富贵无常；不如此，那么王公为什么要警戒谨慎，百姓为什么要劝导勉励? 
善不可不传于子孙，是以富贵无常；不如是，则王公其何以戒慎，民萌何以劝勉？ 
Goodwill cannot be withheld from one's descendants, because wealth and honor are impermanent; otherwise, why would the kings and dukes alert and care, and why would the common people encourage and advise? 