《后汉书·列传·列女传》
城郭变为山林，庭宇遍生荆艾。白骨不知是谁，无人去为掩盖。
数劝升修学，每有不善，辄流涕进规。
The city and town have become mountains and forests; the houses are covered with wormwood. The white bones do not know who they belong to; no one covers them up.