Sheldon: You're awfully quiet.
Leonard: Sorry.
Sheldon: No, I like it.
Leonard: Got a lot on my mind.
Sheldon: Would you like to talk about it?
Leonard: Not really.
Sheldon: Grape Nuts for breakfast, quiet car ride, things are really breaking my way today.

Penny: So neither of them showed up for work today?
Leonard: No, I tried calling and no one picked up.
Penny: Look, I'm sure they're fine. They were probably up all night coming up with a new theory.
Leonard: I also texted to see if he wanted to go to the new Fantastic Beasts movie and he didn't respond.
Penny: All right, well, they're already dead. There's nothing we can do.

Penny: Tam, look. Sheldon's hugging me.
Tam: It's a Saturnalia miracle.

Denise: Okay, so walk up to that chest and push X. X. Push X.
Bernadette: Which one's X?
Denise: The one with the X on it.
Bernadette: Take it easy, I'm new at this.
Denise: What, the alphabet?

Sheldon: How did you get down here?
Penny: The elevator. It's really fast.
Sheldon: I-I need to be alone right now. Don't try to follow me.
Penny: All right. You need a ride?
Sheldon: That'd be great. Thank you.

Young Sheldon: Now just to make sure it's really you watching this and not an imposter, what am I thinking of? On the count of three. One, two, three.
Sheldon: Robot monkey butler.
Young Sheldon: Robot monkey butler. Okay, good.

Leonard: I'm glad you guys made up.
Sheldon: Well, I realized my life turned out great, and it's silly to hold a grudge.
Tam: And I had no idea we were fighting, so it was easy.

Leonard: What is up with you two?
Stuart: Well, it's kind of hard to explain. Uh, you know when things are going great, but you worry that any minute you might screw everything up?
Penny: No.
Leonard: Yes. If you really like her, you can't let fear get in the way. You have to move forward.
Stuart: And at a certain point, the fear of losing her goes away?
Leonard: I will let you know.

Amy: You're up early.
Sheldon: Huh? Yes. I wanted to get a jump on planning a day of fun for you.
Amy: Oh, that's sweet. What are we doing?
Sheldon: Oh, no. Just you. I have other plans. Now, would you prefer to see The Grinch in 2-D or 3-D?
Amy: I don't want to see it at all.
Sheldon: Well, let's go 2-D. No sense in spending extra money.

Leonard: You pick up your dresses?
Amy: Yep. The tailor had to take mine in and let Penny's out. Best day of my life.
Sheldon: What about the day you met me?
Amy: I stand by my statement.

Sheldon: Look at this. They posted another video. It's not even about science. They're on a celebrity bus tour.
Raj: Those are fun. I went on one and saw Tom Hanks talking to his gardener. He's even nice when you plant the wrong color azaleas.

Tam: New neighbor?
Penny: Oh, hi.
Tam: Hi.
Sheldon: Hi.
Tam: Hi.
Sheldon: Hi.

Amy: My mom thinks that Sheldon is the reason I don't spend a lot of time with her.
Penny: Well, why would she think that?
Amy: Because I told her. You need a cup of coffee? Wake up!

Leonard: Sheldon, that was really rude.
Sheldon: I'm sorry. Amy is the one constant I can count on, and now she's changing.
Leonard: It's just a haircut and some clothes.
Sheldon: No, it's the last straw! I can't take any more! [elevator bell dings]
Penny: Can you believe it? They finally fixed the elevator.

Howard: Wow. I wonder what that guy could've done to make Sheldon not talk to him for 20 years.
Leonard: I wonder if it'd work a second time.