瘅恶彰善 dàn è-zhāngshàn
[shun evil and praise what is good] 瘅:憎恨。彰:表扬。憎恨恶的,表扬善的
瘅恶彰善,夷凶靖难。——隋· 薛道衡《隋唐祖颂》