Sheldon: I recently read that during World War Two, Joseph Stalin had a research program to create supersoldiers by having women impregnated by gorillas.
Howard: What a sick use of science.
Raj: Hey, as long as the baby's healthy.
Amy: I wonder if Stalin considered any other animals.
Leonard: Hippos are the deadliest creature. A half-human, half-hippo soldier would be pretty badass.
Howard: Yes, but when they're hungry-hungry, you can stop them with marbles.
Sheldon: Yeah, the correct animal for interspecies supersolider is koala. You would wind up with an army so cute it couldn't be attacked.

Raj: Last night I had a dream we got so rich from the app, you and I bought matching side by side mansions. But there was a secret tunnel connecting your front yard to my back yard. What do you think that means?
Howard: It means that after we play handball I'm showering at home.

Look, Leonard. There's a bridge. Drive off it.

Howard: Did we just see you pick up a girl in a comic book store?
Stuart: 'Cause if you did, you get your picture up there on the wall on the Wall of Heroes.

I'd take Sheldon to Switzerland, absolutely. And I'd leave him there.

Bernadette: How's your soup?
Howard: Ah, it's all right. They could've filled the bowl a little more.
Raj: [Laughs}
Howard: Excuse me.
Bernadette: Where are you going?
Howard: I need some fresh air.
Emily: Been there.

Sheldon: I have noted that Leslie Winkle recently started shaving her legs. Now, given that winter is coming, one can only assume that she's signaling sexual availability.
Wolowitz: I don't know. You guys work in the same lab.
Leonard: So?
Wolowitz: There are pitfalls. Trust me, I know. When it comes to sexual harassment law, I'm a bit of a self-taught expert.
Leonard: Look Howard, if I were to ask Leslie Winkle out, it would just be for dinner. I'm not going to walk into the lab, ask her to strip naked and dance for me.
Wolowitz: Oh, then you're probably okay

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.

Howard: Should we stop holding hands now?
Sheldon: In a minute.
Howard: Okay, good.

Howard: You see, I have to play Dungeons and Dragons ... for the marriage.
Bernadette: You're an idiot.
Howard: I'm your idiot.

Wolowitz: There are two not-unattractive middle school teachers.
Raj: Wonderful. How old are they?
Wolowitz: Fifty, fifty-five.
Raj: Woh, menopause, nature's birth control.

Leonard: Hey, how's it going?
Wolowitz: Cut the crap, you set this up, didn't you?
Leonard: Yes..
Wolowitz: She's a hooker, isn't she?
Raj: A prostitute, yes
Wolowitz: You already gave her the money?
Leonard: Yes
Wolowitz: ... Thank you

TBBT Quotes

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.

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.