Sheldon: You're back.
Arthur: Yeah, apparently I'm here whenever you need me.
Sheldon: That's nice.
Arthur: Maybe for you.

Amy: Arthur passing away was harder on Sheldon than he's ready to admit. I'm really hoping this will cheer him up.
Bernadette: Me too. Although it might have been thoughtless of us to bake a Death Star cake.
Amy: No, it combines two of Sheldon's favorite things: chocolate chips and the ability to destroy a planet at the touch of a button.

Howard: You sure? Not even coffee? We have R2-Decaf. Maybe a nice Cafe au Leah.
Raj: And if you're not in the mood for coffee, I can always make you a Chai Tea-3PO.

Leonard: May the force be with you. Get it?
Penny: Oh no, this face wasn't because I didn't get it.

Sheldon: I'm working on the Star Wars day schedule. Now, I have a window built in, after Phantom Menace, for complaining. But I'm worried an hour won't be enough time.

Sheldon: What are you doing?
Leonard: Comforting you.
Sheldon: Your heart might be in the right place, but your head, chest and arms certainly aren't.

Amy: Watching your old friend?
Sheldon: Yes. Look at him, Amy. It's such a shame. Struck down in the prime of my life.

Sheldon: Amy, mourning the inevitable is a complete waste of time.
Amy: And watching a bunch of goofy space movies you've seen a hundred times isn't?
Sheldon: If we were in a physical relationship, you've just lost sex tonight.

Sheldon: Arthur Jeffries was a scientist. I'm sure he didn't care about stupid superstitions like funerals. If he were here, I think he'd say "Enjoy Star Wars day".
Leonard: He was eighty-four. He'd say "Where's my pudding?"

Raj: Before you go, at least let me pack you some Attack of the Scones for the road.
Penny: Ohh, like Attack of the Clones. ... We are leaving right now!

Arthur: It's fantastic. This is the longest I've gone without running into a men's room in years.

Sheldon: Why are you here?
Arthur: I don't know. I was hoping I was going to haunt my ex-wife.

Sheldon: Why do I need you now?
Arthur: Well, as near as I can tell. You fell asleep watching Star Wars and now you're dreaming you're watching Star Wars.
Sheldon: So?
Arthur: Don't you see a problem there? How you're spending your limited time on earth?
Sheldon: Not at all.
Arthur: Okay. Good luck to you.

Arthur: Appreciate them, Sheldon.

Bernadette: This is pretty cool. You don't see too many spherical cakes.
*The cake rolls off the table*
Amy: I wonder why that is.