JOSIAH: You're so smug and self-satisfied, Doctor.

DOCTOR: I try.

LIGHT: You are endlessly agitating, unceasingly mischievous. Will you never stop?

DOCTOR: I suppose I could. It would make a change.

ACE: Professor. Where's Nimrod?

DOCTOR: Gone to see a man about a god.

GWENDOLINE: Sir, I think Mr. Matthews is confused.

DOCTOR: Never mind. I'll have him completely bewildered by the time I'm finished.

ACE: Don't you have things you hate?

DOCTOR: I can't stand burnt toast. I loathe bus stations. Terrible places. Full of lost luggage and lost souls.

ACE: I told you I never wanted to come back here again.

DOCTOR: And then, there's unrequited love, and tyranny, and cruelty.

ACE: Too right.

DOCTOR: We all have a universe of our own terrors to face.

ACE: I face mine on my own terms.

ACE: When I lived in Perivale—me and my best mate—we dossed around together. We'd out-dare each other on things. Skiving off. Stupid things. Then they burnt out Manesha’s flat. White kids firebombed it. I didn't care anymore.

DOCTOR: I think you cared a lot, Ace.

ACE: You’re no gentleman. Scratch the Victorian veneer, and something nasty’ll come crawling out.

LIGHT: Earth. Why mention that wretched planet to me?

ACE: If you don’t like it, then bog off!

LIGHT: I once spent centuries faithfully cataloguing all the species there. Every organism from the smallest bacteria to the largest ichthyosaur. But no sooner had I finished than it all started changing.

DOCTOR: That’s life.

DOCTOR: Who was it said Earthmen never invite their ancestors round for dinner?