《论衡·卷五·感虚篇》
这是说杞梁随军打仗没有回来，他的妻子很悲哀，对着城痛哭，至诚的悲痛，精气感动了城，所以城墙为此崩塌。
此言杞梁从军不还，其妻痛之，向城而哭，至诚悲痛，精气动城，故城为之崩也。
It is said that Qi Liang went to war and never came back. His wife was very sad and cried before the city wall. Her grief was so sincere that her spirit moved the city wall, which collapsed as a result.