Here I thought you were a one and done kind of girl.

I'm so happy for you detective, despite of who you're marrying.

Gates

Ryan: Just imagine your wedding guests are murder suspects.
Esposito: In their underwear.

Castle: She's proud of you. Wherever she is. She's proud.
Beckett: I never could have done this without you.

Bracken: Everything you are. Everything you've accomplished is because of me.
Beckett: Is that how you justify murder? It builds character?

Detective, you are radioactive. You can't even help yourself.

Smith

Between the cops and Bracken's guy, Beckett's right in the crosshairs.

Esposito

Castle: Guys, she wouldn't want you involved.
Esposito: We're already involved. We're family, bro.

Get a girl's hair wet and they never let it go.

Vulcan

I'm not going to stand by while my mother's murderer becomes President of the United States.

Beckett

Beckett: I love you.
Castle: Yeah, well you better. It's two weeks to the wedding and it's too late to return the tux.

Esposito: I can't believe we just got beat by a girl.
Ryan: Lets never speak of this again.

Castle Quotes

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

Castle

Castle: How do you know when you're in love?
Beckett: All the songs make sense.