Castle: Thank you.
Beckett: Always.

I want you all to myself. If that makes me petty, so be it.

Castle to Beckett

Captain: She's like a tiger in there, I never get tired of watching her.
Castle: Me either.

He was out playing grand theft auto.

This looks like my first apartment, I used to have cockroach races.

This is why Alexis is never going to college.

Hurts like these take time to heal.

You're going to have to deal with mean, backstabbing girls your whole life.

Beckett: You had a lot of imaginary friends growing up, didn't you?
Castle: Still do.

You have to admit, putting a body in an oven is a clever way to get rid of it.

There is nothing natural about cyanide poisoning.

That's just the tip of the iceberg, are you ready for the Titanic?

Castle Quotes

Sometimes the hardest things in life are the things most worth doing.

Castle

Castle: You're not alone in this. I'm here.
Beckett: I know.