《韩非子·内储说下六微》
他暗示秦、楚，让两国攻魏，以便借机请求前去讲和来提高自己的地位。
微讽秦、荆令之攻魏，因请行和以自重也。
He hinted to Qin and Chu to let the two countries attack Wei, so as to take the opportunity to ask to go and negotiate to improve his status.