One bacon cheeseburger, breaking two Jewish dietary restrictions simultaneously.

Sheldon

Sheldon: Your cell phone was off.
Leonard: Because we didn't want to be disturbed!
Sheldon: Well that didn't work out, now did it?

I'm a walking, brown Yelp.com.

Raj

Penny, I told you if you don't put him in his crate at night, he just runs around the apartment.

Leonard

Sheldon: I asked myself what is the most mind-numbing, pedestrian job conceivable and three answers came to mind: a toll booth employees, an Apple store genius, and what penny does. Because I don't like touch other peoples' coins and I refuse to contribute to the devaluation of the word genius, here I am.

I haven't seen him this stuck since he tried to figure out the third Matrix movie.

Leonard

Wolowitz [about Sheldon]: How long's he been stuck?
Leonard: Intellectually about 30 hours, emotionally about 29 years.
Wolowitz: Have you tried rebooting him?
Leonard: No, I think it's a firmware problem.

Bozeman does have a comedy club called the Loony Bin. Please don't forward my mail there.

Sheldon

Oh, no, he's gonna telecommute. Everybody's really excited about it.

Leonard [about Sheldon]

Wonderful security system if we're attacked by a school of tuna.

Sheldon

I do not have to urinate. I am a master of my own bladder. Drat.

Sheldon

The four of you are three of my closest friends, and one treasured acquaintance.

Sheldon

TBBT Quotes

Oh, Bernadette, please play my clarinet.

Raj's poem

Sheldon: I'll have a diet Coke.
Penny: Can you please order a cocktail? I need to practice mixing drinks.
Sheldon: Fine... I'll have a virgin Cuba Libre.
Penny: That's... rum and Coke without the rum.
Sheldon: Yes, and would you make it diet?