Sheldon: You know, I know she's unhappy, but I don't know how to help.
Leonard: Maybe you can't. Sometimes people are upset, and all you can do is be there for them.
Sheldon: And while I'm there, what do I do?
Leonard: Nothing.
Sheldon: Oh, so like what you're doing right now to help me.
Leonard: You're up.

Bernadette: What if you fell? What if you got hurt? I don't want to raise two small children and one large vegetable.

Sheldon: [sings] Soft kitty, warm kitty, Little ball of fur. Happy kitty, sleepy kitty, Purr, purr, purr.
Amy: That helps.
Sheldon: Shh, I'm singing.

Sheldon: Amy. Thank goodness you're home. I don't know if you can tell, but I am literally losing my mind.
Amy: You are?
Sheldon: Isn't it obvious? I just used "literally" figuratively. Like a crazy person.

Bernadette: You know what? I'm done talking about this. Do whatever you want.
Howard: I will!
Bernadette: I just want you to ask yourself if that tiny, ridiculous scooter is the hill you want to die on.

Penny: Sheldon, maybe you don't know what to do because Amy's always taking care of you.
Sheldon: Of course. And by calming down, I've taken away the one thing that gives her comfort: caring for me.
Penny: That's what you heard?
Sheldon: Yes. I need to have an emotional meltdown so she's forced to focus on me and forget about herself.
Leonard: No. Th-That's not even close to what-- Uh, you know, actually, that might be your best move.

Amy: Sheldon, whatever you're doing, I-I don't have time for it right now.
Sheldon: I'm sorry. I know you're upset, but I don't know how to make it better.
Amy: I don't know how you can, either. I mean, I don't know if anybody can. I just-- I feel like I'm letting everybody down.
Sheldon: I'm about to hold you. Would you like to smell my hand first?
Amy: I'm fine.

Sheldon: I tried to console her, but nothing seemed to work.
Leonard: Okay, when you say you consoled her, what exactly does that mean?
Sheldon: [sighs] I took a walk, I came back, she was still upset, so I came here.
Penny: Well, I don't see what else you could've done.

Howard: It's a scooter. It can go on some highways.

Sheldon: [inner monologue] Look all the infinite Mandelbrot sets. Here a brot, there a brot, everywhere a Mandelbrot.

Sheldon: Hang on.
Amy: What-what are you doing?
Sheldon: I'm googling what to do when someone's freaking out. Huh. Uh, whoa, it says here that a walk can be calming. Bye.

Leonard: Hey, buddy, how you feeling?
Sheldon: [moans] Aw. Five more minutes?
Penny: Hey, Amy. Relaxed?
Amy: I'm a failure! I can't do this!
Sheldon: Can someone close her lid? She's kind of harshing my mellow.

Howard: Hey. You still mad?
Bernadette: Are you still a jackass?

Amy: That's great. I'm so happy for you.
Sheldon: Uh, yeah, a little constructive criticism: You're saying you're happy, but you're using your mean voice.
Amy: Thanks for pointing that out. Now you got it.

Sheldon: That tank was amazing. It was like Disneyland, but the rides were in 35 dimensions. And instead of Mickey, I had my picture taken with the concept that time is an illusion.