Pure gold!
2 things on anger that are well known but bear repeating:
1. Anger is allowing someone to live rent free in my head.
2. Anger is like taking poison and hoping the other person dies.
It reminds me of other sayings on the topic:
- "Holding on to anger is like grasping a hot coal to throw at someone else; you are the one who gets burned."
- "Speak when you are angry and that will make the best speech you'll ever regret."
- "Remember, for every minute you're angry you give up sixty seconds of peace of mind."