《汉书·传·张陈王周传》
张良说： 陛下起身于平民，和这些人一起夺得天下，现在陛下成了天子，所封的都是萧、曹等故交亲善的人，杀的都是平素有仇恨的人。
良曰： 陛下起布衣，与此属取天下，今陛下已为天子，而所封皆萧、曹故人所亲爱，而所诛者皆平生仇怨。
Zhang Liang said, "Your Majesty came from the common folk, and you and these people fought together to win the empire. But now that you are Emperor, those who you have enfeoffed are all old friends like Xiao and Cao, and those whom you have killed are all those whom you had a grudge against in the past."