Don’t ask others to do what you wouldn’t do yourself. The story would have been quite different if Harry had said, “Yeah…you guys go fight the dark lord. I’m just uh…I’m just gonna chill here I think.”
己所不欲勿施于人。如果哈利说“恩，你们去和伏地魔战斗……我要在这里冷静地想想”那么故事就会很不一样了。