But to be fair, when you talk, most of what you say sounds like, "Wah, wah, wah, clothes".

Sheldon: I don't understand my food. Chinese noodles with Korean barbecue ... in a taco.
Penny: It's fusion.
Sheldon: Well, my mother would lock her car doors if she had to drive through this hodgepodge of ethnicity.

Amy and Bernadette. Amy and Bernadette. Amy and Bernadette. Why did you lie to us?!

Sheldon: So, we're just randomly choosing a restaurant without researching it online?
Penny: Yep.
Sheldon: Great. You know, this is how Anything Can Happen Thursday turns into It Won't Stop Coming Up Friday.

Leonard: All right. I officially reinstate Anything Can Happen Thursday.
Penny: Great! What do, what do you want to do?
Sheldon: I don't know. What do you want to do?
Penny: I don't know. What do you want to do?
Leonard: I'm starting to remember the problem with Anything Can Happen Thursdays.

Amy: Maybe you could make your new field of study the calculation
of nuclear matrix elements.
Sheldon: Oh, please. If I wanted to take up a fad, I'd get a tramp stamp.

Clogzilla. That's pretty funny. I don't think that's gonna pass.

Penny: Wait. What's wrong with geology?
Sheldon: Let me put this in a way you'll understand, Penny. You remember how you explained to me that the Kardashians aren't real celebrities? Well, geology is the Kardashians of science.

Penny: I gave him a new look. It's cute, huh?
Amy: Yeah, it's cute. That's the problem. I don't need other girls to see him walking around like sex on a stick.
Sheldon: She's right. I'm too hot.

Sheldon: Am I wasting my life on a theory that can never be proven?
Howard: Maybe. But how great is Game of Thrones?

Amy: Y-You'll feel better after you eat.
Sheldon: Okay.
Amy: What-what do you want, like, Thai food? A... a burger?
Sheldon: I don't know!

Sheldon: Quick poll: PS4 or Xbox One? Raj.
Raj: Uh, Xbox One.
Sheldon: Penny.
Penny: Huh?
Sheldon: Leonard.
Leonard: PS4.
Sheldon: Wolowitz.
Howard: Both great.
Sheldon: Bernadette.
Bernadette: I like the Wii.
Sheldon: Thanks, Grandma

TBBT Quotes

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.