The characters of Zhao Mengfu of the Yuan dynasty were extremely enchanting, but he defied the principle of "being loyal and serving no second master." Zhao was therefore criticized as "deficient in fortitude" and his characters as "lacking a gallant spirit."
元朝趙孟俯的字寫得極媚，因為違背了「忠臣不侍二主」的原則，人被評為「為人少骨力」，字也就「無雄渾之氣」了。