Amy: I don't know what made me think tonight would be any different.
Bernadette: Well just the fact you got him up here says a lot. To be honest, I bet Howie $200 that it wasn't going to happen.
Howard: I'm going to the Lego Store to get a big-ass R2D2.
Bernadette: See, it's not just Sheldon, they're all idiots.
Howard: She's right.

Leonard: I'm not sure it's a good idea to take Penny to where wine comes from.

Sheldon: What is your problem?
Amy: It's Valentine's day. We're supposed to be having a romantic weekend.
Sheldon: Oh, really? 'cause I remember you saying this trip was going to be something we could both enjoy. Did you mean that or were you just trying to trick me?
Amy: Fine, it's true. I deserve romance and I didn't know how else to make it happen.

Sheldon: The conductor said if I come back to the engine room, he'd show me how to take the train through a crossing.
Amy: Okay. Have fun.
Sheldon: Do you want to come with me?
Amy: Really? I do!

Amy: (About Sheldon) Why do I even try?
Bernadette: I'm going to fix this right now.
Howard: Okay, but just make it look like an accident.

Sheldon: I made a new friend who likes trains as much as I do, I kissed Amy on the lips, and the conductor played his banjo for me.

Sheldon: What are the sleeping arrangements? We've only been dating for three years. If we were to share a room people might talk.

Raj: I don't have (Valentine's) plans, which is why I booked time on the big telescope that night.
Amy: An evening looking at the stars, that's still kinda romantic.
Raj: Except I'd be alone.
Amy: I'm trying to put lipstick on a pig here. Work with me.

Sheldon: Well, my new friend's name was Eric, Amy's lips tasted like the brownie we had for dessert, and the banjo-playing conductor was missing a finger but made up for it with his can-do attitude.

Leonard: Hang on, hang on. Are all those things equal to you?
Sheldon: Hmm, it never occurred to me to pick a favorite.
Leonard: Give it a go.
Sheldon: I can't answer that without collecting additional data.
Leonard: "Additional data", you dog!
Sheldon: I'm not sure how listening to other nine-fingered banjo players makes me a dog, but all right.

Yvette: You're the owner?
Raj: Owner. Father. Soul mate. And, if anything happens to her, your (Leonard & Penny) worst nightmare!

Bernadette: So your boyfriend's a fixer-upper? Most of them are. I mean look at this guy. You think he came like this? When I met him he was a hot, goofy mess. Now, he's been to Space. That's all me!
Howard: I had a little to do with it.
Bernadette: Oh sure you did. Who's momma's big Space Man?
Howard: I am!

Raj: Oh my God, Cinnamon, are you okay? I can't believe you two (Leonard & Penny). (To the vet) You do whatever it takes to save her life. If she needs any new organs I'll buy any dog necessary and scrap them for parts!

Leonard: They've been in there for like half an hour.
Penny: Yeah, for future reference that's a while.

Leonard: Ooh, flowers and chocolates? Somebody's trying to get me out of my panties.