《后汉书·列传·刘玄刘盆子列传》
王莽末年，南方闹饥荒，人们成群结队地跑到野外的沼泽地，挖些荸荠充饥，甚至互相抢夺。
王莽末，南方饥馑，人庶群入野泽，掘凫茈而食之，更相侵夺。
In the last years of Wang Mang's reign, there was a famine in the South, people traveled in groups to outdoor swamps and dug out arrowhead as food and they even robbed each other.