This might come as a shock, but looks like I'm the respectable adult in this situation.

Sorry about that. Your breasts are fantastic. I wouldn't change a thing.

Teddy: I wanted to talk to you about breast implants.
Mark: Good for you! It crossed my mind the first time I saw you, but I didn't think you'd go for it.

I wanna build a life and a family. And I'm not wasting my time on someone that doesn't share that interest.

Callie: Find a grownup that you like and date, like a grownup.
Mark: I don't know what that means.

Derek: Screwing drugs reps isn't gonna make you feel better.
Mark: Yeah, it is.

That's the Sloan nose. Can you see it? That's my dad's nose! He's got the Sloan nose ...

Mark: Torres, you know anything about putting together cribs?
Callie: You got a crib?
Mark: Sloan's coming home this week and I got one and I put it together but it wobbles. It can't wobble!
Callie: You're like a sweet dad now. I hardly recognize you.
Mark: Who's that new blonde over there? I may be a dad, but I'm still a single dad. Excuse me.

Mark: Ahhh! What did you do to your hair?
Lexie: I changed it! [pauses] You thought I was someone else. And you were hitting on me! You are pathetic, and hypocritical and slutty.

[to Lexie] You can't pull it off! Blondes are either bad ass or fun. You're ... you're a brunette!

I'm not the one whose immature. And you made me wreck my skin graft.

Mark: I made a bet she wouldn't make it down that aisle. Won $50.
Owen: What aisle?
Mark: You never heard that story? That's a good story.

Grey's Anatomy Quotes

It's harder to love somebody than to walk away from them.

Amelia

MEREDITH: "You don't get to call me a whore. When I met you, I thought I had found the person that I was going to spend the rest of my life with. I was done! All the boys and all the bars and all the obvious daddy issues, who cares? I was done. You left me. You chose Addison. I'm all glued back together now. I make no apologies for how I chose to repair what you broke. You don't get to call me a whore."
DEREK: "This thing with us is finished. It's over."
MEREDITH: "Finally."
DEREK: "Yeah, it's done."
MEREDITH: "It is done."