Howard: Honestly, if I could bend that far what would I need with you.
Bernadette: If you could bend that far, you'd be doing both of us a favor.

Howard: I'm sorry I didn't take you to the airport. I just want you to know I'll never forgive myself for being so selfish. And I promise to keep you close for the rest of my life.
Bernadette: Oh, no, that thing's gonna end up in my bedroom.

Bernadette: (Shouting from the bathroom) How many times do I have to tell you to replace the toilet paper when it's empty?
Howard: I'm in the middle of something.
Bernadette: So am I!

Bernadette: Gosh, Amy. I'm sensing a little hostility. Is it maybe because like Sheldon's work, your sex life is also theoretical?

Howard: If you don't leave now, she'll use food and guilt to keep you there the rest of your life.

Mrs. Wolowitz Oh please. You're a tall glass of brown water. Have dessert.

Amy: What if you could find a roommate who was a scientist and already familiar and comfortable with your ways.
Sheldon: That would be ideal. If a person like that existed, I would sign on, no further questions asked.
Amy: Great. Here I am!
Sheldon: Wait. Here who is where?
Amy: Me. Aren't I your perfect roommate?
Sheldon: Um...
Amy: Think about it, Sheldon. I'm not a stranger, we're both intellectually compatible, I'm willing to chauffeur you around town, and your personality quirks, which others find abhorrent and rage-inducing, I find cute as a button. What do you think?
Sheldon: Um.
Amy: Tell me one reason why this isn't a fantastic idea.
Sheldon: Um.
Amy: See? You can't. I'm gonna go see if Leonard's room is big enough for my water bed.
Sheldon: Um.