Beckett: I will find Castle with or without the FBI.
FBI Agent: You're assuming he wants to be found.

Gary: You're going to break my finger.
Beckett: And after that there's nine more.

Beckett: Tell me this is still part of the fairy tale.
Castle: If it is, it's a Grimm one.

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?

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

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.

Beckett: Castle, aren't there more important things than winning?
Castle: Oh, that's a notion created to comfort those who lose.

Beckett: I think catching killers is pretty extreme and then there's marrying you.
Castle: Ah yes, I admit I am extreme. Extremely handsome.
Beckett: With a high degree of difficulty.

A reigning champion unable to cope with defeat. That sounds familiar.

Because the second Harold sets foot in this place it's going to burst his little '70s bubble.

Castle Quotes

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

Castle

Rick Castle: Checking you for bites and scratches. Just making sure you didn’t somehow get impregnated.
Kate Beckett: If you think that’s how I’d get pregnant we need to talk.