Amy: So. You're leaving, aren't you?
The Doctor: You haven't seen the last of me. Bad penny is my middle name. Seriously, the looks I get when I fill in a form.
Amy: Why now?
The Doctor: Because you're still breathing.
Amy: Well I think this is about the washing up.
The Doctor: You know you're right. There's still heaps of stuff out there to look at. Did you know, there's a planet who's name literally translates as "volatile sex." Or maybe there's a bigger, scarier adventure waiting for you in there.
Amy: Even so, it can't happen like this. After everything we've been through, Doctor. Everything. You can't just drop me off at my house and say goodbye like we shared a cab.
The Doctor: What's the alternative? Me standing over your grave? Over your broken body. Over Rory's body.
