见义勇为 (見義勇為) jiàn yì yǒng wèi

jiàn yì yǒng wèi set phrase to see what is right and act courageously; to stand up bravely for the truth; acting heroically in a just cause
Domain: Idiom 成语
Notes: From the Analects (CC-CEDICT '見義勇為'; CCI p. 22; Guoyu '見義勇為')