Sweetie ... every night you don't kill him in his sleep, he wins.

Penny

Howard: If I may, he has so little self-respect and is so desperate for the smallest crumb of affection, she could literally sleep with his own father in his own bed and post the video to YouTube, and he'd still buy her flowers and ask her to be his bride.
Raj: He's right.

Why is the key always confidence? How come it's never love handles and flop sweat?

Raj

Sheldon: It's great you're here. I'd love to get an engineer's opinion.
Howard: Sure.
Sheldon: This chair is squeaky. Now, do I fix it or get a new one?

Gentlemen, please. Leonard is trying to walk a mile in my metaphorical shoes. He can't walk in my actual shoes. He has the feet of a toddler.

Sheldon

I may be a bad waitress, but you're a bad person. Now, want to hear the specials?

Penny

How those nipples feeling, chief?

Sheldon

How about this? I promise I won't pester you about the DVD. You can defecate in peace. That's a win for both of us. Until this matter is resolved, I would like you to wear this sweater ... with nothing underneath it.

Sheldon

Leonard: How about that? Sheldon's being reasonable.
Penny: Yeah, it's freaking me out. I'm gonna go.

Leonard: I'm gonna show you what's in the box, but just ... promise not to flip out.
Sheldon: Why would I flip out? Is it a spider? It's a spider.
Penny: No, if it was a spider, Lenny would've flipped out.

Check it out. You can wear yours and we can have little sword fights whenever we want.

Raj

I've been informed that he's now Bill Nye the Restraining Order Guy.

Sheldon

The Big Bang Theory Season 7 Quotes

Howard: There's a party for incoming post-docs tonight. Go to it and meet someone who isn't made of grease or pie.
Raj: You think you're so cool because your wife is a person?

Sheldon: Even the dung beetle chooses to plot its course by using the Milky Way.
Raj: Is that true?
Sheldon: Everything I say is true. Now, of course, the dung beetle also enjoys eating fece, living in feces and making little balls out of feces. So, pick and choose which aspects of its lifestyle you want to embrace.