DOCTOR: First things first?

ROMANA: Exactly.

DOCTOR: But not necessarily in that order.

GRUGGER: Now, you tried to trick us. Give me one good reason why I shouldn’t kill you now.

ROMANA: Anticlockwise rotation.

BROTADAC: What?

ROMANA: I forgot that the planet rotates in an anticlockwise direction.

BROTADAC: What’s she talking about?

GRUGGER: Rotation, direction, revolving.

BROTADAC: Oh.

GRUGGER: Well, what difference does that make?

ROMANA: Don’t you see? If we’d gone the other way, we wouldn’t have come back to the same point.

MEGLOS: I’m a Time Lord. Having lived in the future I can hardly die in the present.

DEEDRIX: That can’t be true. That’s a philosophical paradox.

MEGLOS: No, it’s merely beyond your comprehension.

DOCTOR: Hello there, I’m the Doctor. I’m expected.

GUARD: I didn’t see you go out.

DOCTOR: What?

GUARD: This is the second time you’ve been in here.

DOCTOR: I say, you’ve got a marvellous memory. It must be fifty of your years since I was last here.