Leonard: So don't watch TV. Read a book.
Sheldon: And be a social pariah? Now you know that's not my style.

On Thursdays everybody comes over here and has pizza, or a reasonable facsimile prepared by someone claiming to be Luigi but who sounds suspiciously like Jackie Chan.

Sheldon

We could also stop using the letter M. But I think that idea is isguided and oronic.

Sheldon

Indians making Tex-Mex. Might as well have had the Chinese pizza.

Sheldon

Sheldon: Oh what fun. Like hippies at a love-in.
Leonard: Just sit here.
Sheldon: Right on man, right on.

How wonderful, dinner with some assembly required.

Sheldon

This evening I am the Dark Knight roaming these mean streets alone; a windbreaker for my cape and a stern expression for my cowl.

Sheldon

At one point Raj put on reggae music and his sister took off her shoes. It was like the last days of Caligula.

Sheldon

Penny: Today I drove to Van Nuys for an audition that I thought was for a cat food commercial. Turned out to be porn.
Sheldon: Did you get the part?

Penny: Ooh I thought I smelled pizza.
Sheldon: That's remarkable. If pepperoni were an explosive substance, you could replace German Shepherds at our nation's airports.

At this point in our ecosystem you are akin to the Plover, a small scavenging bird that eats the food from between the teeth of crocodiles. Please, fly into our open maw and have at it.

Sheldon

If you're experiencing any tension or awkwardness, it may stem from the fact that Leonard and Penny used to, if I may quote Howard, do the dance with no pants.

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?