曹操自喻为“老马”。他的诗中写道：“老骥伏枥、志在千里：烈士暮年，壮心不已。”关汉卿自喻为“铜豌豆”。他如是说：“我却是蒸不烂、煮不熟、锤不扁、炒不爆、响当当的一粒铜豌豆。”古罗马诗人贺拉斯自喻“磨刀石。”他这样说：“我不如起个磨刀石的作用，能使钢刀锋利 Cao Cao describes himself as an “old horse.” In his poem, he wrote: “The old people are ambiguous, and they are eager for a thousand miles: The martyrs are very old and have a strong heart.” Guan Hanqing calls himself “copper peas.” He said: “I’m a steamed, uncooked, uncooked, hammered, fried, and reckless piece of copper pea.” The ancient Roman poet Horace himself replied, “Honestone.” He said: "I’m not as good as a whetstone that can sharpen steel knives.