Dr. Cox:
"Because, ultimately, you don't have to answer to me, and you don't have to answer to Kelso, you don't even have to answer to your patients, for God's sake! You only have to answer to one guy, Newbie, and that's you!"
In all seriousness, I've applied this to my life, it helped me through exams aswell. Yet another reason for Dr. Cox's awesomeness.