《论衡·卷十五·顺鼓篇》
现在一个国家发生水灾，如果真想要攻阴，以断绝造成水灾的阴气的话，应该把全国人都发动起来，拿着刀和棍子去攻击土地神，就像年终驱逐疫鬼那样，这样做了以后才是适合的。
今一国水，使真欲攻阳，以绝其气，悉发国人操刀把杖以击之，若岁终逐疫，然後为可。
Now a country is suffering from floods, if we really want to attack the yin, in order to cut off the yin Qi that causes the flood, we should mobilize the whole nation, using knifes and sticks to attack the land gods. We should do that in the same way as we drive out evil spirits at the end of the year. After we do that, it is appropriate.