《淮南子·说山训》
甲壳类动物凭借坚固的甲壳活动生存，细腰蜂等动物依靠毒螫活动生存，熊罴以蛮力来攫取食物，犀牛靠角抵来活动保存自己：这物类没有放弃自己的长处而用其短处的。
介虫之动以固，贞虫之动以毒螫，熊羆动以攫搏，兄牛之动以抵触，物莫措其所修而用其短也。
Crustaceans rely on their hard shells to survive, hornets and other animals rely on poisonous stings to survive, bears rely on brute force to seize food, and rhinos rely on horns to protect themselves. This kind of thing does not give up its strengths but uses its weaknesses.