Rick Castle: I don't know how you did it.
Kate Beckett: What?
Rick Castle: Kept it together the two months I was missing. Two days I didn't know where you were and it nearly killed me.

She’s as shrewd and high functioning of a sociopath as he ever was.

Kate Beckett: Castle, stop chasing the mice in your head.
Rick Castle: What if they're leading me to the truth?

Kate Beckett: Castle, do you realize how lucky you are?
Rick Castle: Extremely lucky, after all I'm married to you.

Kate Beckett: I'll give it to you straight. I'm just a girl, looking for a private dick.
Rick Castle: Whoa, then your search is over, sweetheart.

I think that if this is what you really want to do then I'm behind you all the way.

Castle: What happened to that rebellious girl with the leather jacket and the motorcycle? Would she say can't?
Beckett: She enforces the law now and drinks expensive wine.

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

Beckett: You, me, theorizing, together. It's not right, especially here after this P.I. thing.
Castle: No, don't think about it. Just think about how it feels when we work together. Besides we have the place to ourselves. Who's going to know?

So you believe Dino because he gave you a paper cut?

What word rhymes with I'm screwed?

Kate: Castle, you really think I could stand between you and your boyhood dream?
Castle: You are my boyhood dream.

Castle Quotes

I need time to stop being mad and you need time to figure out a way to be OK with this.

Alexis

I tried to stay in the car I really did.

Castle