This isn't really an afterlife, it's just more life than you were expecting.

Seb

Danny: Wi-fi. You have iPads in the afterlife.
Seb: iPads. WE have Steve Jobs.

Missy: My heart is maintained by The Doctor.
The Doctor: Doctor who?
Missy: Doctor Chang!!!

The Doctor: Clara? You asked me what we're going to do, I told ya. We're going to go to hell, or wherever it is people go when they die, if there is anywhere. Whatever it is we're gonna go there and we're gonna find Danny. And if it is in any way possible, we're going to bring him home. Every culture has a concept of an afterlife. I always meant to have a look around, see if I could find one.
Clara: You're going to help me?
The Doctor: Well, why wouldn't I help you?
Clara: Because of what I just did, I just...
The Doctor: You betrayed me. You betrayed our trust, you betrayed our friendship, you betrayed everything that I've ever stood for. You let me down!
Clara: Then why are you helping me?
The Doctor: Why? Do you think that I care for you so little that betraying me would make a difference?

The Doctor: If I change the events that brought you here, you will never come her and ask me to change those events! Paradox loop. The timeline disintegrates, your timeline, and yes!
Clara: Yes?
The Doctor: I did just say no. Throw away the key.

You told me once what it would take to destroy a TARDIS key. That's what's so good about lava. All seven from all of your hiding places.

Clara

Danny I will never say those words again, not to anybody else. Ever. Those words from me are yours now.

Clara

What is it with you people? You hear voices you wanna shut them up, the trees come to save you, you want to chop them down.

The Doctor

I was wrong. The trees are not your enemy, they're your shield. They've been saving you since forever, protecting you from everything that space can throw at you.

The Doctor

The Doctor: I can save you.
Clara: I don't want you to.
The Doctor: You don't want to live?
Clara: Of course I want to live, I just...
The Doctor: What?
Clara: Don't make me say it.
The Doctor: I don't want to be the last of my kind.

I just informed you the planet is going to be razed by a solar flare and you're concerned about a row with your boyfriend.

The Doctor

Clara: I'm actually frightened I never get frightened why am I frightened?
The Doctor: You just lost a little girl.
Clara: Yes, that is a worry, but I know you'll find her. No no no. This, this is not worry. This is a threat.

Doctor Who Quotes

Once, long ago, a fisherman caught a magic haddock. The haddock offered him three wishes in return for its life. The fisherman said, “I’d like for my son to come home from the war. And a hundred pieces of gold.” The problem is, the magic haddock, like robots, don’t think like people. The fisherman’s son came home from the war, in a coffin. And the king sent a hundred gold pieces in recognition of his heroic death. The fisherman had one wish left. What do you think he wished for? Some people say he should have wished for an infinite series of wishes, but if your city proves anything, it is that granting all your wishes is not a good idea. [...] In fact, the fisherman wished he hadn’t wished the first two wishes.

The Doctor

Hunger looks very much like evil from the other end of the cutlery. Do you think your bacon sandwich loves you back?

The Doctor