據《後漢書》、《三國志》記載，曹操、董卓、袁紹、袁術、孫策、劉備等群雄都有為俠經驗，史書中也可見俠與官府對抗的記載。顯現漢魏之際，俠仍是一股不可忽視的力量。陳壽、范曄撰寫史書時，卻未替俠立傳，魏晉時人魚豢所著《魏略》，有〈勇俠傳〉一文，保留四位勇俠的事蹟。為何魚豢相較於同時代史家，更看重俠歷史意義？並在當時代眾多俠類型中，挑選勇俠作為代表，是否勇俠在魚豢心中不僅有別於其他俠行，繼游俠之後，成為一時代俠風的代表？

The man, Yu Huan, wrote the book "Wwi Liu" in Wei Jin Dynasty which has an essay named "Biographies of Yong Xia" about four Yong Xia. And the content of this essay keeps these men's brave behavior. Why does Yu Huan take Xia seriously in the history compare to other historians at that time? And we should put this essay "Biographies of Yong Xia" in which place could be a topic for discussion.