Leonard: You still have a cold?
Raj: Maybe, but I don't care. That's the good thing about NyQuil -- it's like, 10% booze. I call it the "nighttime sniffling, sneezing, coughing, so you can talk to girls medicine."

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

Leonard: I think any university would want you -- except, of course, any university that had already had you, because they would have already wanted you, before they, you know, got you.
Sheldon: From the mind that brought you "hi-lo."

Leonard: Are you planning on kidnapping a woman?
Sheldon: Sarcasm?
Leonard: Yes, but mixed with a little bit of concern.

Don't let Goofy near him. He'll have nightmares, and I'll have to deal with it

Leonard: If my PE teachers told me this is what I was training for I would have tried a lot harder.
Penny: Do or do not, there is no try.
Leonard: Did you just quote Star Wars?
Penny: I believe I quoted Empire Strikes Back.
Leonard: Oh my God. I'm lying in bed with a beautiful woman who can quote Yoda.

Sheldon: I recently had a dream that I was giant, but everything around me was to scale, so it all looked normal.
Leonard: How did you know you were a giant if everything was to scale?
Sheldon: I was wearing size "a million" pants.

Leonard: We think we can help you with your stage fright.
Sheldon: Oh, I doubt that. I haven't figured out a way, and I'm much smarter than all of you.
Penny: Yes, buy you're not smaller than all of us put together.
Sheldon: I'm sorry, that is what I meant.

Leonard: What, to you, is a large crowd?
Sheldon: Any group big enough to trample me to death. General rule of thumb is 36 adults or 70 children.

Leonard: You want to talk endless patience? Penny made me watch all five seasons of Sex and the City.
Raj: Dude, there's six seasons.
Leonard: Oh crap.

Leonard: It should go back to Peter Jackson. He made the movies; it belongs to him.
Wolowitz: Fine, he can have it back -- as long as he promises to make me a hobbit in his next movie.
Raj: There are no Jewish hobbits.
Wolowitz: Clearly, you've never been to my house for dinner on Rosh Hashana.

Here's Mr. T's head on Spock's body. I pity the fool that is illogical.

TBBT Quotes

Stephen Hawking: You made an arithmetic mistake on page two. It was quite a boner.
Sheldon: No, no ... that can't be right. I-I don't make arithmetic mistakes.
Stephen Hawking: Are you saying I do?
Sheldon: Oh, no, no, no, of course not. It's just, I was thinking.... Oh, gosh, golly, I made a boo-boo and I gave it to Stephen Hawking.
Stephen Hawking: Great, another fainter.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.