George Mason's speech to Michelle in Season 2.
Mason: Believe it or not, I used to want to be a teacher. A long time ago. You know why I didn't? Because DoD offered me more money. That's how I made my decision. So I made myself miserable, and I made everybody around me miserable. For an extra five thousand dollars a year. That was my price. ...You know, Michelle, I'm not a big advice giver, but under the circumstances, don't wait around for your life to happen to you. Find something that makes you happy. Do it. Because everything else is just background noise.