☉ 庆父不死，鲁难未已 【qìnɡfùbùsǐlǔnànwèiyǐ】
　　[ Qing Fu is done away with,the crisis in the state of Lu will not be over—there will always be trouble until he who stirs it up is removed ] 庆父:鲁庄公的弟弟。庆父不死，鲁国的祸乱就平息不了。比喻不除掉罪魁祸首，就不会有安宁。
　　例： 尝与人书曰:“庆父不死，鲁难未已。”——《晋书·李密传》