I'll keep things simple.

1. Some things are inevitable whether we like it or not.
2. I hate when I have to choose between mental anguish and physical pain.
3. Sometimes you have to let someone go in order for them to come back to you.
4. Never ever start something you know you can't finish.
5. Frustration is never a consequence, it's a symptom.
6. When everything is in doubt and you're angry and everything. Drop it for that person next to you. It might mean more to both of you than your own pride.