《汉书·传·张陈王周传》
张良说： 臣为韩王送沛公，现在事情紧急，逃跑不义。 
良曰： 臣为韩王送沛公，今事有急，亡去不义。 
Zhang Liang said, "I came to see the general on behalf of the King of Han. Now that things are urgent, it would be unrighteous to run away."