Can I just say this school of yours is worth every penny.

How worried should I be about Beckett?

I've let it define me, drive me. It's made me who I am.

Beckett

I know what it feels like to be in those crosshairs. I know what it feels like to have that bullet burn a hole through my chest. I know what it feels like to have your life leave your body.

Beckett

No, you don't understand. I need to be ok!

Beckett

Beckett: Do you know what he has that most men don't?
Castle: A Josh Groban cd?

Don't worry mother, I saw this work on Die Hard.

Rick

He has the IQ of a squirrel.

Alexis

What Elvis can't be brown. I'm El-vis.

Esposito

This is the worst impromptu bachelor party while on case ever!

We're not going to be seeing Carrot Top tonight, are we?

Trust me, you do not want to start a marriage with a family feud.

Castle Season 4 Quotes

I'm not going to lose her again.

Castle

I know I'm not going to be able to have the kind of relationship I want until the wall comes down. I cant do that until this is put to rest.

Beckett