"Zuo Zhuan. The Thirteenth Year of Duke Zhao": "Zhongni said: In ancient times, there was ambition, self-denial and restoration of etiquette, and benevolence. Believe it or not, if King Ling of Chu could do this, he would not be humiliated by Qianxi River."

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You must have read this vernacular sentence from a Taekwondo practitioner. It talks about the indomitable spirit of etiquette, integrity, tolerance and endurance. . .