The angels are predators. They're deadly. What do you want with them?

River Song

It means, Mr. Grail, just you wait til my husband gets home.

River Song

Tea, but the strong stuff. Leave the bag in.

The Doctor

Rory: And will Amy be there?
The Doctor: No.
Amy: How do you know?
The Doctor: Because he was so excited to see you.

Rory, even if you got out, you'd have to keep running for the rest of your life. They'd be chasing you forever.

The Doctor

I always wanted to visit The Statue of Liberty. I guess she got impatient.

Rory

Amy: Then why do you keep coming back for us?
The Doctor: Because you were the first, the first face and you're seared into my heart and you always will be Emilia pond. I'm running to you and Rory before you. Fade before you.
Amy: I don't want you to be nice to be me.
The Doctor: Yeah you do pond.

Because the traveling is starting to feel like running away.

Amy

So, human sleeping potion or human innuendo. Take your pick.

Amy

This is the gang. I've got a gang. Yes!

The Doctor

Brian: What happened to the other people who traveled with you?
The Doctor: Some left me, some got left behind and some, not many but some, died.

The Doctor is God knows where. Did real life just get started?

Rory

Doctor Who Quotes

Great men are forged in fire. It is the privilege of lesser men to light the flame. Whatever the cost.

Warrior Doctor

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?