This was one of my favorite things in high school. It helped me understand that there are more important things than keeping the peace. Sometimes, confrontation is okay, and sometimes it is crucial.
You have no enemies, you say?
Alas, my friend, the boast is poor.
He who has mingled in the fray
Of duty, that the brave endure,
Must have made foes. If you have none,
Small is the work that you have done.
You've hit no traitor on the hip,
You've dashed no cup from perjured lip,
You've never turned the wrong to right,
You've been a coward in the fight.