While I do love kissing you Beckett, it's just a little creepy when you do it in front of a dead body. It's inappropriate.

I didn't open this place to make money. I opened it for the exciting cases.

Alexis: I can't leave you alone for five minutes.
Castle: Does this mean no hug?

I am so sick of people pushing me away for my safety.

Castle: This novel writes itself.
Ryan: Then tell us what happens next.
Castle: I have no idea. That's what makes it so good.

You know Beckett asked for some time so I'm just giving it to her every day. Sometime twice.

This is why I love the 12th precinct. You guys never let me down.

Marcus

Kate: Now Rick, be charming but not too charming.
Rick: That's like asking Superman not to be too super.

I believe her exact words were, “Sure, maybe we'll get lucky and Castle will get shot.”

Ryan

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.

Well she was shot in the head so unless she tripped and fell on a bullet, it wasn't an accident.

Beckett

Martha: I told you, if you can't tell your mother what you're doing you should not be doing it.
Castle: Yes, when I was eight.

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