The quote on Johanna Beckett's grave reads "vincit omnia veritas" in Latin, which roughly translates to "truth conquers all things".
Castle: Beckett, what do you want?
Beckett: You. (she kisses him) I'm so sorry, Castle. I'm so sorry. I'm so sorry.
Castle: What happened?
Beckett: He got away, and I didn't care. I almost died, and all I could think about was you. I just want you.
Castle: Kate, listen to me...
Beckett: Listen to you? Why should I listen to you? How I am even supposed to trust anything that you say?
Castle: How are you... Because of everything we've been through together! Four years, I've been right here. Four years just waiting for you to just open your eyes, to see that I'm right here and that I'm more than a partner. Every morning, I-I bring you a cup of coffee just so I could see a smile on your face because I think you are the most... remarkable... maddening... challenging... frustrating person I have ever met.
Beckett: If I care about you? Castle, you cut a deal for my life like I was some kind of a child. My life, mine...
Castle: You don't get to decide. You keep going with this, they're gonna decide. They're gonna come for you, Kate.
Beckett: Let them come. They sent Coonan, and he is dead. They sent Lockwood, and he is dead. And I am still here, Castle, and I am ready.
Castle: Ready for what, to-to die for your cause? This isn't a murder investigation anymore, Kate. They've turned it into a war.
Beckett: If they want a war, then I will bring them a war, straight to their doorsteps.
Castle: Well, I guess there's just nothing I can say, is there? Okay, um... Yeah, you're right, Kate, it's your life. You can throw it away if you want, but I'm not gonna stick around and watch you, so this is, uh... over. I'm done.
Beckett: Of course you don't understand why she's taking her graduation speech so seriously. You were probably the guy who had nothing on but boxers underneath his gown.
Castle: That is so insulting. If you must know, I was naked underneath.
Beckett: Oh, I'm sorry. I stand corrected.
Esposito: I'm gonna run this through Army C.I.D. If they met in the military someone in Orlando's old unit might be able to I.D. him.
Beckett: No, no, we don't know who's involved and we don't know how high this goes. The minute we put this photo out there, these people are gonna know. He's gonna disappear, and we will never see him again. We have to do this one on our own.
Ryan: Beckett, that's impossible. All we have is a face, no name, no I.D., no way to find this guy.
Beckett: Then we will find a way to find him. I'm not gonna lose this lead.
Ryan: How are we supposed to investigate if we can't investigate?
Esposito: You heard the lady. We find a way.
Ryan: Hey, Javier. Man, this just feels wrong. We need to tell Gates.
Esposito: Why? So she can send Beckett home? You think that's gonna work? You think that's gonna stop her? She's gonna investigate this case, Kevin, whether she's on it or not. The least we can do is make sure that we have her back.
Alexis: (about her graduation speech) It's not supposed to be this hard.
Castle: You know, the most worthwhile things in life are often the most difficult. For example... (His phone starts to ring, he sees Beckett's name) Wow. That really is a smart phone.
(Alexis giving her valedictorian commencement speech intertwined and voiced over scenes as Beckett packs up and leaves the station to Beckett sitting on the swing in the rain)
Alexis: There is a universal truth we all have to face, whether we want to or not – everything eventually ends. Much as I've looked forward to this day, I've always disliked endings. Last day of summer. The final chapter of a great book. Parting ways with a close friend. But endings are inevitable. Leaves fall. You close the book. You say goodbye. Today is one of those days for us. Today we say goodbye to everything that was familiar, everything that was comfortable. We're moving on. But, just because we're leaving, and it hurts, there are some people who are so much a part of us, they'll be with us no matter what. They are our solid ground, our North Star, and the small clear voices in our hearts that will be with us, always.
"In My Veins " by Andrew Belle
Original International Air Dates:
Canada: May 7, 2012 on CTV
Australia: July 1, 2012 on Channel 7
United Kingdom: August 8, 2012 on Alibi/Alibi HD
Germany: December 7, 2012 on Kabel 1
Czech Republic: February 13, 2013 on Prima family