Lucifer: I got plenty of gripes with the old man. His self-righteous narcissism, his “my way or the highway” quirk. I gotta hand it to him. He had a couple of great seconds when he banged out the universe. Guy had creative chops. And optimism. I'll give him that. And despite his pissiness and his massive lack of irony, he did give mankind a good turn at bat and a chance to live in paradise. He ruled. He smote. He parted waters. Worshipped by creatures who made God in man's image. And then, he got disappointed. Or worse, bored. Picked up all his toys and... left.
Castiel: Jack, I've killed people who didn't deserve it... my friends... I've killed people I loved. I wish I could tell you that it... that it gets easier, that with time, it hurts less, but that would be a lie because it... it never gets easier. And those moments, they never stop hurting. But that doesn't mean that you should stop fighting. Doesn't mean that just because you made a mistake... and that's what this is, Jack. It's a mistake. That doesn't mean that you can't... can't be better, do better. I believe that. I have to believe that.
Dean Winchester: My whole life, I always believed that what we do was important. No matter what the cost, no matter who we lost, whether it was Dad or... or Bobby or... And I would take the hit. But I kept on fighting because I believed that we were making the world a better place. And now Mom and Cas... And I... I don't know. I don't know.
Sam Winchester: So now you don't believe anymore.
Dean Winchester: I just need a win. I just need a damn win.
Billie (to Dean): That doesn't sound like the Dean Winchester I know and love. The man who's been dead so many times but it never seemed to stick. Maybe you're not that guy anymore, the guy who saves the world, the guy who always thinks he'll win no matter what. You have changed. And you tell people it's not a big deal. You tell people you'll work through it, but you know you won't, you can't, and that scares the hell out of you.
Dean Winchester: Dude, what is going on with you?
Sam Winchester: What are you talking about?
Dean Winchester: All day. You give me a-a beer for breakfast. You... you gave me Agent Page, which you always like to be. You... you didn't whine about me blaring my music the whole way here. And when we stopped for lunch, you ordered me chili fries.
Sam Winchester: You love chili fries.
Dean Winchester: Everybody loves chili fries. That's not the point. Now you wanna go hang out at a strip club? You hate strip clubs.
Sam Winchester: No, I don't.
Dean Winchester: Dude, the last lap dance you had was... was at Christmas. It was a gift paid for by me. You spent the entire song trying to convince the girl that she should go to nursing school. So what is it? It is my birthday? Did... did I win a bet that I don't know about? What?
Sam Winchester: No, nothing. Nothing. I-I mean, I'm just trying to be nice.