Castle: What's the difference between cursed and clumsy?
Alexis: I'll get a band aid.
Castle: Get two.

There's no upside in screwing with things you can't explain.

Captain Roy Montgomery

Castle: Do you believe people get what they deserve?
Beckett: Well, if they do then I must have done something terrible to be punished with you.
Castle: Funny.

Beckett: You know Castle, sometimes I forget that you have such a capacity for pure innocence in your life.
Castle: Yeah, plus it was a great place to pickup chicks.
Beckett: Then you open your mouth and you ruin it.

Beckett: Either you are being a good cop or you just wanna go to the museum?
Castle: They have dinosaurs there.

Agent Shaw: Honestly, the thing that impressed me most is that you came in with Castle.
Beckett: You know, some people would call that foolish.
Agent Shaw:You made a tough decision on your feet, used the resources at hand. I'd say that's heroic and somewhat poetic. In the end, Dunn did actually face Nikki Heat. She is after all, part you, part Castle.

Agent Shaw: He cares about you, Kate. You may not see it. You may not be ready to. But he does.
Beckett: Yeah, well, the situation with Castle is... complicated.

Agent Shaw: Castle. Thank you for your help. You are a valuable asset to Detective Beckett's team.
Castle: Well, it would be great if you would call her and remind her of that from time to time.

Shaw: Castle, what part of un-ass don't you understand?
Castle: All of it.
Shaw: For future reference, it means get the hell out and don't take anything.

Castle Season 2 Episode 18 Quotes

Agent Shaw: Castle. Thank you for your help. You are a valuable asset to Detective Beckett's team.
Castle: Well, it would be great if you would call her and remind her of that from time to time.

Shaw: Castle, what part of un-ass don't you understand?
Castle: All of it.
Shaw: For future reference, it means get the hell out and don't take anything.