Dude, they're donuts. Either you're in or you're out.

Kate: I've been kind of looking forward to spending the rest of my life with you so don't do anything stupid in there, OK?
Castle: Don't worry. I think I've already hit my stupid quota for the day.

Kate: What am I going to do, just sleep in every morning and screw around till the phone rings? What kind of life is that?
Castle: Mine.

Kate: I might as well apply to become a mall cop.
Castle: Ooh, you would look great on a Segway.

At least we know we're in the right place. I definitely stepped in something.

Ryan: Castle, your whole relationship is built on the foundation of your boundary pushing.
Castle: Good point.

Half the time I don't know if I'm smelling our new compost bin or my daughter's rotting ambition.

Pi: We're making smoothies.
Castle: And yet for me, not so smooth.

Tell you what though, next time I say I'm dying to see you let's keep it metaphoric.

Just because we haven't figured it out yet doesn't mean we won't.

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

Chief Villante: When you write your next novel, maybe you'll find a place for a dashing Columbian-American federal agent.
Castle: Consider it done.

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