《明史·列传·卷一百九十三》
他又叩头说 ：奴才此行绝无所作为，不过是以一死报答主上恩德而已。 
又顿首曰： 奴此行万无能为，不过一死报主恩尔。 
He kowtowed again and said: "Your servant will achieve nothing by going this time, but I will only repay the kindness of the Lord with my death."