Dean: You guys don't walk enough. You're gonna get flabby. You know, I'm starting to think Junkless has a better sense of humor than you do.
Castiel: Uriel's the funniest angel in the garrison. Ask anyone.
Dean: Cas, hold up. What were you going to tell me?
Castiel: I learned my lesson while I was away, Dean. I serve Heaven, I don't serve man. And I certainly don't serve you.
Dean: Destiny? Don't give me that "holy" crap. Destiny, God's plan... It's all a bunch of lies, you poor, stupid son of a b*tch! It's just a way for your...