"Get a little self-control, kids. You're all supposed to be grownups now. That means you don't always say or do whatever pops into your head, or act upon whatever "feeling" rises to the surface of your selfish little heart."
Mr. Card, I'm a teenager who's just realized he has to stop acting so obnoxious and immature, and finally grow up.
You've basically given me words to internalize at the point when I've finally realized I needed them.
Geez, it's just like karma or something, ain't it?