柳宗元作《蝜蝂传》,说“蝜蝂者,善负小虫也。行遇物,辄持取,昂其首而负之。背愈重,虽困剧不止也。其背甚涩,物积因不散,卒踬仆不能起。人或怜之,因为去负,苟能行,又持取如故。又好上高,极其力不已,至坠地死。”看来蝜蝂这小玩艺也是够贪的了,你看它“遇物辄持取”,“虽困剧不止”;“踬仆不能起”,仍不肯丢下所取之物;只要能够走路,又“持取如故”;直到精疲力竭,死而后已! Liu Zongyuan made “蝜 蝂 Biography”, saying “蝜 蝂 who, good and bad insects also. 行事 物, 時 持 取取, 其 首 首 而 之. 背 重, 困 困 困 剧 不 不 也. The back is astringent, Because of the goods are not scattered, the soldier can not afford to slaughter .People or pity, because to go negative, Gou can do, but also hold the same .Optimum high, very powerless, to death die. But also enough of corruption, you see it ”occasional hold“, ”although the distress more than“; ”servant can not afford to" still refused to leave the things taken; as long as able to walk, Until exhausted, after death!