《战国策·秦一·张仪说秦王》
请大王姑且采用我的策略，假如不能一举而瓦解天下合纵，攻不下赵，灭不了韩，魏、楚不称臣，齐、燕不加盟，霸王之业不能建立，天下诸侯不来朝贡，那就请大王砍下我的头，在全国各地轮流示众，以惩戒那些为君主谋划而不尽忠的臣子。 
大王试听其说，一举而天下之从不破，赵不举，韩不亡，荆、魏不臣，齐、燕不亲，伯王之名不成，四邻诸侯不朝，大王斩臣以徇于国，以主为谋不忠者。 
Please ask the king to adopt my strategy for the time being. If he can't disintegrate the world's unity and attack Zhao, he can't destroy Han, Wei and Chu don't surrender, Qi and Yan don't join in, the cause of the overlord can't be established, and the princes of the world don't pay tribute , then please ask the king to cut off my head and show it to the world to punish those ministers who are not loyal to the monarch.