春秋时期，秦国攻打晋国。晋惠公看中一匹郑国进贡的骏马，执意要骑着它上战场。大臣庆郑认为这匹马外强中干，不能用于作战。晋惠公不听劝告，结果在战场上，这匹马受惊，陷入泥潭，晋惠公被俘。庆郑的预言不幸言中，也体现了晋惠公的昏庸无能。这个故事告诉我们，不能只看表面现象，要透过现象看本质，要重视内在实力的培养。
Chunqiu shiqi, Qin guo gong da Jin guo. Jin Huigong kanzhong yipi Zheng guo jìngong de junma, zhiyi yao qi zhe ta shang zhanchang. Dachen Qing Zheng renwei zhepi ma waiqiangzhonggan, buneng yongyu zuozhan. Jin Huigong bu ting qugao, jieguo zai zhanchang shang, zhepi ma shoujing, xian ru nitan, Jin Huigong bei fu. Qing Zheng de yuyan buxing yan zhong, ye tixianle Jin Huigong de hunyong wuneng. Zhege gushi gaosu women, buneng zhi kan biao mian xianxiang, yao touguo xianxiang kan benzhi, yao zhongshi neizai shili de peiyáng.