[yuán fāng jì fāng]   

元    方    季    方    意指两人难分高下。后称兄弟皆贤为“难兄难弟”或“元方季方”。

意指两人难分高下。后称兄弟皆贤为“难兄难弟”或“元方季方”。

Praising the two brothers both having ability and political integrity

元戎启行    元经秘旨    元奸巨恶    元恶大奸    元龙高卧