be ready to take up the cudgets for a just cause; be zealous in doing what is righteous in seeing it; do boldly what is righteous; see what is right and have the courage to do it
见到合乎正义的事就奋勇地去做。［反］隔岸观火。
连动式；作谓语、定语；含褒义
看到正义的事，就勇敢地去做。
《论语·为政》：“见义不为，无勇也。”
见义勇为真汉子，莫将成败论英雄。 ◎明·冯梦龙《东周列国志》第十四回