词语

以毒攻毒原义为用毒药治毒疮引申为利用坏人、坏事之间的矛盾使其自取灭亡。例而劫痼改积巴菽殂葛犹不得而后之以毒攻毒有至仁焉。——宋罗泌《路史有巢氏》英Take a bit of the dog that bit you; Evil must be driven out by evil;