刚正不阿（剛正不阿）　

◎ 刚正不阿 gāngzhèng-bù’ē

[be upright and never stooping to flattery] 为人刚直公正,不逢迎趋附

济南同知 吴公,刚正不阿。——《聊斋志异·一官员》