Althea: Fill these out.
Leonard: Thank you. We'll be right back.
Althea: Oh, take your time. I'll just finish my crossword puzzle. Oh wait.

Althea: What is this?
Howard: It's a robot arm.
Althea: Where's the rest of the robot?
Howard: I only built the arm.
Althea: Because that's all you needed, right?

Leonard: Is this the high-IQ sperm bank?
Althea: If you have to ask, maybe you shouldn't be here.

Howard: Can you please just help me?
Althea: All right, all right. Hang on, stay calm. (Over the PA system) I need an orderly with a wheelchair. I got a robot hand grasping a man's penis out here.
Howard: You think you could be a little more discreet?
Althea: I'm sorry. We don't have a code for robot hand grasping a man's penis.

Leonard: Our babies will be smart and beautiful.
Sheldon: Not to mention imaginary.

Penny: So, what do you guys do for fun around here?
Sheldon: Well, today we tried masturbating for money.

Sheldon: Um, Penny, that's where I sit.
Penny: So, sit next to me.
Sheldon: No, I sit there.
Penny: What's the difference?
Sheldon: "What's the difference"?
Leonard: Here we go.
Sheldon: In the winter that seat is close enough to the radiator to remain warm, and yet not so close as to cause perspiration. In the summer it's directly in the path of a cross breeze created by open windows, there and there. It faces the television at an angle that is neither direct, thus discouraging conversation, nor so far wide to create a parallax distortion. I could go on, but I think I've made my point.