I won't say that all senior citizens who can't master technology should be publicly flogged, but if we made an example of one or two, it might give the others incentive to try harder.

Leonard: Well, it seems once again you're caught between a rock and a crazy place.
Sheldon: Oh, I hate when that happens.

Zack: I see, you were inferring that i'm stupid.
Sheldon: That's not correct. We were implying it... you then inferred it.

I tried to scare an Indian with a snake. Come on, Cooper, you're better than this.

Leonard: Well, it wasn't my fault.
Sheldon: The implication being that you somehow tripped and fell into her lady parts?

Sheldon: Is there any reason you're keeping this dead goldfish?
Penny: Damn, I forgot to feed him and that I had him.
Sheldon: Well, now, did you also have a dog? Because I found what appears to be a battery-operated chew toy.
Penny: Party's over. Party's over.

Wolowitz: Okay forgot giant ants. How about giant rabbits?
Raj: Big or small, I don't like rabbits. They always look like they're about to say something, but they never do.
Sheldon: Rabbits do have a respiratory system that would support great size. And as a side note, they are one of the few animals whose scrotum is on the front of the penis.
Raj: Maybe that's what they want to talk about.

Penny: That's thinking ahead.
Sheldon: The alternative would be to think backwards.. and that's just remembering.

You keep in mind that my sharply-worded comments on yelp.com recently took down a muffin store

There once was a brave lad named Leonard, with a fie fie fiddle dee dee. He faced a fearsome giant while Raj just wanted to pee.

Wolowitz: You love that spot.
Sheldon: No, I love my mother. My feelings for my spot are much greater. It is the singular location in space around which revolves my entire universe. And now it's yours.

It did not kill me when you went to space. Monkeys went to space.

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?