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

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

It is what it is.

Ryan

Don't listen to those haters.

Esposito

Spoiler alert.

Hurts like these take time to heal.

She took my coffee, Castle!

Beckett

Science fiction is not science.

Misgivings? Katherine, that was the farthest thing from his mind. He couldn't wait to be married to you.

Martha

One small murder for man, one giant mystery for mankind.

Rick Castle

Mars. Nova Scotia. This guy really loves barren landscapes.

Kevin Ryan

Rick Castle: Checking you for bites and scratches. Just making sure you didn’t somehow get impregnated.
Kate Beckett: If you think that’s how I’d get pregnant we need to talk.

From, "Don't ruin my story with your logic" to "We want the happy ending, we can't give up." Check out all of the great Castle quotes right here at TV Fanatic.

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.