Kate Beckett: You texted Castle and not me?
Kevin Ryan: Well, when you have a crazy theory you don't call the voice of reason.

Then who's this, your evil twin?

The good news is Sarah Grace will have enough money for college. The bad news is she'll have no idea who I am.

Mars. Nova Scotia. This guy really loves barren landscapes.

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.

She might have been killed by a psychotic plumber lying in wait.

Castle: Ryan, you played the C card?
Ryan: You weren't around. Somebody had to step up.

Beckett: He is resourceful but he's not that resourceful.
Ryan: He got you to marry him, didn't he?

You know what would really suck, if Castle solved this case before we did.

Someone has to provide us with out of the box thinking now that Castle's not around.

Ryan: You know what time it is? It's Ryan time.
Esposito: Please just stop.
Ryan: My name's Ryan and I hate lyin'.

Ryan: That strains credibility.
Esposito: Yeah, in a good way.

Castle Quotes

Beckett: (Clears throat) Ahem. What's the deal with men and boobs, anyway?
Castle: Biological. We can't help it.
Beckett: But doesn't it bother you that they're so obviously not real?
Castle: (Pauses) Santa's not real. We still love opening his presents.

Sometimes the hardest things in life are the things most worth doing.

Castle