Graham: Hey, Doc, do you think it's safe?
The Doctor: I doubt it. It's a jittering dimensional portal in a mirror in a Norwegian bedroom.

Ryan: Woah. Why are we not in the mirror?
Graham: I don't know.
Ryan: We'd know if we were vampires, right?

Not hungry are you? Because these days, I always carry a cheese and pickle sarnie. Y'know, just for emergencies.

Graham

Ryan: Maybe we shouldn't be in here.
Yaz: There's a child in this house.
Graham: Or some maniac who collects kids' shoes.

The Doctor: It's only 2018. I thought we'd leaped into the Wooly Rebellion.
Yaz: Sorry, what?
The Doctor: The Wooly Rebellion. In 193 years, there's a total renegotiation of the sheep-human relationship. Utter bloodbath.

Graham: Got your bearings yet, Doc?
The Doctor: Norway. Definitely Norway. One of the frilly bits on the top.

Ryan: We have to help out.
King James: Yes, yes. We must confront those agents of Satan even in the face of witchery and...
Yaz: Aw, mate, seriously? Not witches! Bodies possessed by alien mud!

There's more powerful people here than kings and queens. There's us. Together.

Willa

King James: She truly is a powerful witch.
The Doctor: No, sire. I am no witch. I'm just good at holding my breath and getting out of chains thanks to a very wet weekend with Houdini.

Savage: Do you know why the ducking stool was invented, Doctor? To silence foolish women who talk too much.
The Doctor: Yeah, I did know that, which is daft because talking's brilliant.

I could show you everything if you stop being afraid of what you don't understand.

The Doctor

King James: Who are you? How do you know these things?
The Doctor: I know because we're all the same. We want certainty, security. To believe that people are evil or heroic but that's not how people are. You want to know the secrets of existence? Start with the mysteries of the heart.

Doctor Who Quotes

Only in darkness are we revealed. [...] Goodness is not goodness that seeks advantage. Good is good in the final hour, in the deepest pit, without hope, without witness, without reward. Virtue is only virtue in extremis. This is what *he* believes, and this is the reason above all I love him, my husband. My madman in a box. My Doctor.

Nardole [quoting River Song]

Gallifreyan Soldier: There was a saying, sir, in the Time War.
Lord President Rassilon: A saying?!
Gallifreyan Soldier: First thing you notice about the Doctor of War is that he is unarmed. For many, it's also the last.