PERI: Have you the faintest idea what you look like?

DOCTOR: My outward appearance is of no importance whatsoever.

PERI: Well, it is to me. I have to live with it.

(She goes through his jacket pockets and finds a mirror compact.)

PERI: Here, look at yourself.

DOCTOR: Very well, if you insist.

PERI: What do you see?

DOCTOR: Ah. A noble brow. Clear gaze. At least it will be, given a few hours sleep. A firm mouth. A face beaming with a vast intelligence. My dear child, what on Earth are you complaining about?

(He gives her the mirror back.)

DOCTOR: It's the most extraordinary improvement.