We will solve the greatest mystery of the disco era, besides the popularity of disco itself.

Beckett: I look ridiculous.
Castle: Ridiculously hot.

By the power vested in me by the NYPD I will personally arrange for you to see the deceased.

Harold: Have you ever seen a cop with an ass that fine. If this women's lib I'm all for it.
Castle: To be fair, you do have a very fine, never mind.

A testament to the truly indestructible nature of polyester.

Beckett: If Hector's as dangerous as advertised this could get a little hairy.
Castle: Hairy's my middle name. That sounded a lot better in my head.

Castle: Speaking of your sister.
Gates: Let's not.

A southern chill? More like a polar vortex.

Maybe the invisible hand of the market killed Peter that would explain the lack of defensive wounds.

Beckett: Castle I love you but I will not marry you on a ride or up in space or on slide.
Castle: I bet Dr. Seuss got married somewhere fun.

Lipstick marks on my shirt? Where? Beckett will kill me.

If this is a tea company, I'd like a cup.

Castle Quotes

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

Castle

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.