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.

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.

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

By hand? That's like life before TiVo.

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

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

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

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

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.

Hayley: It might be for the best. Ignorance is bliss.
Castle: No, ignorance is hell.

I am your father and from the day you came into this world it's been my job to protect you.

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