荀子在《劝学篇》中写道:“蚓无爪牙之利,筋骨之强,上食埃土,下饮黄泉,用心一也”。 是啊！蚯蚓既无利爪尖齿,亦无强盘硬骨,先天条件相对不足,对它后天的期望值就不能太高。但是,就是这种低等环节动物,硬是用它那圆柱形滑溜溜的柔软之躯,在深厚的土壤里不停地穿穴运动,疏松土地,肥沃原野,为植物生长提供良好条件。人们感谢它,赐了它一个“天然松土机”的雅号。 它,上食埃土,下饮黄泉。从不要求 Xunzi wrote in Encouraging Science: “The earthworm is free from claws, the bones are strong, the earth is earthen, and the drink is yellow spring. Yes! Earthworms neither sharp claw tines, nor strong hard bones, the relative lack of congenital conditions, its acquired value can not be too high. However, it is this low-level animal, just because of its smooth cylindrical silky soft body, in the deep soil constantly wearing acupuncture points, loose land, fertile fields, provide good conditions for plant growth. People thank it, gave it a nickname ”natural ripper". It, eating earthen, under the drinking spring. Never ask