Episode 2 The Witch's Familiar

Clara: Why are you sharpening that stick?
Missy: Well, I've no idea how long we're going to be stuck out here? Might have to go hunting.
Clara: So why am I tied up?
Missy: In case there's nothing to hunt.

Missy: He's trapped in the heart of the Dalek empire. He's a prisoner of the creatures that hate him the most in the universe. Between us and him are everything the deadliest race in all of history can throw at us. We, on the other hand, have a pointy stick. How do we start?
Clara: We assume we're going to win.
Missy: Oh. Pity, really. I was actually quite peckish.
Clara: Can I have a stick, too?
Missy: Make your own mistake.

The Doctor: I suppose the real question is, where did I get the cup of tea? Answer: I'm the Doctor. Just accept it.

The Doctor: (to Davros) Well, they don't have much respect for you, do they? Your kids. Have you seen the state of this place? I mean, this is exactly where you dump a smelly old uncle. Slash family pet slash "genius scientist" who couldn't even invent legs. Seriously, how do you boys take it when everybody else has two eyes?

The Doctor: There's no such thing as the Doctor. I'm just a bloke in a box, telling stories. And I didn't come here because I'm ashamed, but shame never hurt anyone. I came... because you're sick and you asked. And because sometimes, on a good day, if I try very hard, I'm not some old Time Lord who ran away. I'm the Doctor.
Davros: Compassion, then?
The Doctor: Always.
Davros: It grows strong and fierce in you, like a cancer.
The Doctor: I hope so.
Davros: It will kill you in the end.
The Doctor: I wouldn't die of anything else.

Davros: Still you play the fool.
The Doctor: Well, by now that should make you nervous.

Boy: Which side are you on? Are you the enemy?
The Doctor: I'm not sure any of that matters. Friends, enemies. So long as there's mercy. Always mercy.