DOCTOR: Hey, don’t knock the Binks clan. They’re good people. Very hospitable.

MARTHA: Yeah, right.

DOCTOR: No, I’m serious. Old George thought Jar Jar was a figment of his imagination, but people often mistake telepathic messages for their own ideas.

MARTHA; You are joking, right?

DOCTOR: Mind you, he was way off the mark with all that stuff in Episode 9.

MARTHA: It’s people, isn’t it? They use people as fuel.

DOCTOR: We-ell... yes and no. To be specific, they use negative emotional energy—terror, pain, distress, that kind of thing—contained within the raw matter of blood, bone, brain and sinew. It’s not very nice, but at least it’s environmentally friendly.

DOCTOR: Iron! Iron! Surely you’ve heard of it? It’s a malleable ductile ferromagnetic metallic element, found mainly in haematite and magnetite. Grappling irons are made out of it, and soldering irons, and... and horses and ages and fists.

ETTA: It’s true what they say about the Brits. Mad as hatters, the lot of them. Even the ones from outer space.

ETTA: You’re a very forward young man, aren’t you?

DOCTOR: Forward, backward, sideways. Half the time I don’t know whether I’m coming or going.

ETTA: Is he always like this?

MARTHA: No. Sometimes he can be quite eccentric.

RICK: You say you’re the doctor? So do you mean you’re, like, the new doctor?

DOCTOR: Interesting question. I suppose that all depends, doesn’t it?

SCOTT: On what?

DOCTOR: On when you meet me. I mean, if you meet me in your past and my future, I’d be the new Doctor to you, but the old Doctor to me, whereas if you meet the old me in your future, I’d be the new Doctor now and the old Doctor later. You see?

SCOTT: Huh?

DOCTOR: You haven’t met the future me by any chance, have you?

SCOTT: Er...no.

DOCTOR: Aw, pity. I wanted to know whether I was ginger.