친구가 명언이라고 보내줬는데 해석 좀 부탁드립니다.

Those who do nothing are inviting shame as well as violence.
Those who act boldly are recognizing right as well as reality.
-JFK

첫째줄은 대충 알겠는데 둘째 줄은 전혀 모르겠네요.