The whole universe was in a hot, dense state -
then nearly 14 billion years ago expansion started... wait!
The Earth began to cool - the autotrophs began to drool -
neanderthals developed tools, we built the wall
We built the Pyramids!
Math, science history - unraveling the mystery
It all started with a Big ...
Bang!
—Barenaked Ladies, "The History of Everything", the show's opening theme
Sheldon: I'm a physicist. I have a working knowledge of the entire universe and everything it contains. Penny: Who's Radiohead? Sheldon: (after several seconds of twitching) I have a working knowledge of the important things in the universe.
Sheldon: You know, it's amazing how many supervillains have advanced degrees. Graduate schools should do a better job of screening those people out.
"I don't know what your odds are in the world as a whole but when it comes to the population of this car you are a veritable 'Mackdaddy.'"
—Sheldon: Pilot (To Leonard regarding his chances with Penny while she, Raj and Howard are in the car)
"Nerds."
—Steve Wozniak
Leonard: What would you be if you were attached to another object by an incline plane wrapped helically around an axis? Sheldon: (Beat) ...screwed!
Sheldon: It's your turn. Raj: Ah, I'm not interested in playing anymore. Sheldon: Because you don't have a girlfriend!? Good Lord! If that's a reason to not play Dungeons And Dragons then this game is in serious trouble!
(during a paintball game against the geology department) Sheldon:(stands at the top of the hill and shouts to his opponents) GEOLOGY ISN'T A REAL SCIENCE! (he is promptly slaughtered by paintballs) Howard: Damn them those SONS OF BITCHES!!(he, Raj, and Leonard run down the hill to attack) Sheldon:(watches happily) If there's ever a Church of Sheldon, this will be when it started.
Raj: Come on Sheldon, it's Star Wars. Howard: I'm going to press play, I mean it! Come on, we gotta hurry up and watch it before George Lucaschanges it again.
Penny: Okay shh, Tyra Banks is about to kick somebody off America's Next Top Model. Sheldon: Excuse me Penny, but we're- Leonard: No, don't tell her... Sheldon: ...playing Klingon Boggle. Leonard: Aaaw... Howard: What do you mean "aaaw", like she didn't know we were nerds?
Quotes about the show
"This plotline gets extra props for featuring an extended riff on the novel Flatland, which makes this probably the only show I cover that could even possibly have an extended riff on the novel Flatland."
—from The Onion AVClub's review of episode 3x12, "The Psychic Vortex"