Olympia

“The Doctor: Hello, I've come to see the Lord Mayor.
Idris Hopper: Have you got an appointment?
The Doctor: No, just an old friend passing by, bit of a surprise. Can't wait to see her face!
Idris Hopper: Well, she's just having a cup of tea.
The Doctor: Just go in there and tell her "the Doctor" would like to see her.
Idris Hopper: "The Doctor" who?
The Doctor: Just "The Doctor". Tell her exactly that, "The Doctor".
Idris Hopper: Hang on a tic.
[Idris goes inside. There is the sound of a teacup smashing and Idris returns.]
Idris Hopper: The Lord Mayor says "thank you f-for popping by." She'd love to have a chat, but, um, she's up to her eyes in paperwork. Perhaps you would like to make an appointment for next week...
The Doctor: [happily] She's climbing out the window, isn't she?
Idris Hopper: Yes, she is.”
― Russell T Davies

“The Doctor: 'You know when grown-ups tell you everything's going to be fine, but you really think they're lying to make you feel better?'
Amelia: 'Yeah...'
The Doctor: 'Everything's going to be fine.”
― Steven Moffat

“Amy: I never knew you drank wine.
Doctor: I'm 1103 I must have drunk it sometime in my life.
*takes sip and spits it out in disgust*”
― Steven Moffat

“Angel Bob: Doctor? Excuse me, hello, Doctor? Angel Bob here, sir.
The Doctor: Ah, there you are, Angel Bob. How's life? Sorry, bad subject.
Angel Bob: The Angels are wondering what you hope to achieve.
The Doctor: Achieve? We're not achieving anything. We're just hanging, it's nice in here: consoles; comfy chairs; a forest... how's things with you?
Angel Bob: The Angels are feasting, sir. Soon we will be able to absorb enough power to consume this vessel, this world, and all the stars and worlds beyond.
The Doctor: Yeah, but we've got comfy chairs. Did I mention?
Angel Bob: We have no need for comfy chairs.
The Doctor: [amused] I made him say 'comfy chairs'.”
― Steven Moffat