庸中皦皦
    Pinyin: yōng zhōng bì tóng

    Explanation: 犹言出类拔萃。常人中显得才能特出者。同庸中佼佼”。

    Source: 北魏·郦道元《水经注·洛水》上叹曰‘卿庸中皦皦，铁中铮铮也。’”