Beckett, I think your crime scene's making a run for it.

You want to know what hurts the most? You could have come to me with everything. Broken us up just like you did only it would have been a cover and together, in secret we could have taken this guy down but that thought never even occurred to you because deep down inside you like being broken and you need this obsession and no matter what I do I can't change that, only you can, Kate.

You know when I hung up my shingle as a P.I., I knew I'd have to follow some wives, I just never thought it would be my own.

Castle: The fact that you even think that breaks my heart. I would walk into a tornado for you, Kate.
Beckett: And I would die if I lost you.

Esposito: So you're going full hipster now.
Ryan: Have you started jarring artisanal pickles yet?

Castle: Kate, I have never given up hope, not since the day we met and that will never change until you tell me it should.
Beckett: Then don't change, ever.

No relationship can survive secrets or lies.

Castle: They've been through way too much together to give up on what they have.
Beckett: You're a wise man Castle, with a big heart and you're rather good looking too.
Castle: You might want to pace yourself with the flattery. You've got a whole dinner to get through.

Looks like someone did not enjoy getting screwed, out of their money that is.

You're supposed to be our buffer. Buff!

Ryan

Castle, nothing you do is little.

Ryan

I lost my wife because I wasn't man enough to put her needs ahead of mine. Don't make the same mistake.

Slaugher

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