What do Sheldon Cooper and the black hole have in common? They both suck.

Professor Hawking

Amy: I feel like I'm in high school again.
Bernadette: Yeah, doing the prom queen's homework, so she'll like us.
Amy: I know. It's finally working.

Coop and Rolling Thunder are back together again.

Sheldon

She writes like she cooks.

Leonard

There's the problem. You can't beat Hawking like that. He hates to lose. Everyone knows the guy's a big baby. I mean, forget the wheelchair, he should be in a stroller.

Howard

Hey, this is my paper. And, my perspective is that slavery is bad. Oh, and my professor's black, so I'm pretty sure that's the right answer.

Penny

Amy: You have to be the weirdest couple I know.
Penny: Really? You can't think of anyone weirder?
Amy: I can, [whispers] but she's sitting right there.

Not to mention, your acting career is going south like Sherman. Read about it in your book.

Amy

Oh, it's only a matter of time before we're coming up with fun nicknames for each other. I'll be Coop. He'll be Wheels. If he's okay with that.

Sheldon

Howard: Sheldon, I know Stephen Hawking. I worked with him.
Sheldon: And if they ever come out with a game called Words with People You Once Worked With, you'll be off to the races.

The Big Bang Theory Season 6 Episode 6 Quotes

Oh, it's only a matter of time before we're coming up with fun nicknames for each other. I'll be Coop. He'll be Wheels. If he's okay with that.

Sheldon

Howard: Sheldon, I know Stephen Hawking. I worked with him.
Sheldon: And if they ever come out with a game called Words with People You Once Worked With, you'll be off to the races.