Amy: Jewelry? Seriously? Sheldon, you are the most shallow, self-centered person I have ever met! Do you really think another transparently manipulative - Oh, it's a tiara! Put it on me, put it on me, put it on me, put it on me.

Penny: You look beautiful.
Amy: Of course I do, I'm a princess and this is my tiara!

Sheldon: Hard as this may be to believe, it's possible that I'm not boyfriend material.
Leonard: Glad I was sitting down for that.

Sheldon: You were right, the tiara was too much.

Mrs. Wolowitz Has she tried on the vest yet?
Howard: I just gave it to her.
Mrs. Wolowitz I hope it fits. She's a tricky figure. She's short and stacked, like me.

Sheldon: Remarkable. Diamonds. Crystalized carbon. Every day, people go to the grocery store and come home with sacks full of carbon, in the form of charcoal brickets, which they toss in their barbecues and set on fire. But just because you have some carbon with the atoms stacked neatly, you expect me to plunk down thousands of dollars.

Wolowitz: I mean, even Donkey Kong had Donkey Kong Jr. so he could teach someone how to kidnap princesses and throw barrels at Italian plumbers.

Penny: Amy doesn't want a pocket watch.
Sheldon: Maybe she wants a man with a pocket watch.

Wolowitz: My mother can be a pretty good shoulder to cry on. If the smell of Ben-Gay doesn't burn your eyes.

Sheldon: I don't think there's anything in this jewelry store that Amy would appreciate more than the humidifier that we were just looking at at Sears.
Penny: Oh, my God, now I know what I sound like to you when I say stupid stuff.

Sheldon: Coins lodged in body parts is not a source of amusement. When I was five, Billy Sparks put a Mexican peso up my nose.
Howard: How is that not amusing?
Sheldon: It's still there. Takes me forty-fives minutes to get through airport security.

Sheldon: This is how you're going to entertain your little cousin and his friends? By lying to them?
Howard: How is this lying?
Sheldon: A magic show is an inherently deceitful proposition. This is an ordinary top hat. You've chosen that card freely. I do not have a set of lock picks lodged in my keister.
Raj: Can't you just enjoy the wonder, Sheldon? Why must you peek behind the curtain? Or up the butt?
Sheldon: If we poison the critical thinking faculties of children by telling them that rabbits come out of hats, then we create adults who believe in astrology and homeopathy and that Ryan Reynolds was a better choice for Green Lantern than lovable rogue Nathan Fillion.

Bernadette: The thing is, my mother worked full-time. I had to take care of my brothers and sisters.
Howard: Yeah, so?
Bernadette: Ugh, it was horrible. With their snotty noses and their poopy diapers and their little shrieky voices, always complaining. I don't want to get dressed. Joey keeps spitting in my mouth. This isn't the way Mom makes waffles. Well, okay, put your hand in here. Let's see how you like this waffle!

Howard: Look, I made Sheldon disappear. Ta-da.
Leonard: Next time, you should lead with that.

Penny: Ooh, look who's out on a date. Pasadena's favorite power couple, Shamy.
Sheldon: And that is the answer to the question, what is wrong with eating at The Cheesecake Factory.