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

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

Leonard: Still arguing which is the best CSI?
Howard: We agreed they all have their merits.

I'm still not adjusted to how SyFy spells their name now. S-Y-F-Y... that's siffy.

Sheldon: I'm not aware of the acronym KMN.
Leonard: From the context we think it means 'kill me now.'

Leonard: How do you get an entire lecture hall to flip you off at the same time?
Howard: Apparently if you're Sheldon all you have to do is turn your back.

Penny: What if I got him to apologize and promise to behave?
Leonard: Then I guess we would let him back on the app team and while we're doing that, you can take an aerial tour of L.A. on your flying pig.

Leonard: It's what we do. We give each other a hard time. Hey, Sheldon, you look like a praying mantis.
Sheldon: That was very hurtful.

You actually want to deceive your father with some sort of sham, playacting and kissing? Because I'm good with that.

Sheldon: And here's where we are -- the runts in a large litter unlikely to ever reach the nourishing teats of Indiana Jones.
Leonard: So it's good we stopped for dinner.

Leonard: Hi. I'm Leonard. You are beautiful. You pop, sparkle and buzz electric. I'm going to pick you up at eight, show you a night you will never forget.
Raj: Where are we going?

Raj: Woh, woh, woh! I don't want to speak to the FBI.
Leonard: Why not?
Raj: I'm brown and I talk funny.

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.

It's very simple. Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and, as it always has, rock crushes scissors

Sheldon