Richard, this is not one of your books. You don't know the ending.

Martha

You might want to pay attention to the real world for a moment.

Martha

Sometimes it's the people we think we know best that we don't really know at all.

Undercover. I like it. You might want to pop another button just in case.

Castle [to Kate]

Castle: You're going to call off your dogs, right now.
Bracken: Or what? You going to write something mean about me?
Castle: I'm going to start a scholarship in your name and offer it to the children of the first inmate who shanks you in the prison laundry.

Hey fanboy, let's go.

Esposito

That names so fake it sounds like one out of your books.

Esposito

Every record falls in the end.

Beckett

It is what it is.

Ryan

Ryan: Do you think she's still alive?
Castle: She's alive.
Ryan: How do you know?
Castle: Because he's not done with me yet.

Ignorance is bliss.

Lanie: I heard you made an interesting arrest today, want to talk about it?
Beckett: No.
Lanie: Ok, keep hold all that in, you're gonna get an ulcer.

Castle Quotes

I don't get it. He's into you and your determined not to give into these feelings that you clearly have for him. So he fantasizes about you through his writing. It is literally verbal masturbation.

Natalie

I can't tell you how many times I've had dreams of being on this very ship.

Beckett