Leonard: Damnit.
Priya: Wow, Leonard, already?
Leonard: No no no. The screen froze.

There's no junk jiggling; we just talk.

Leonard

I miss the old days when your romantic partners could be returned to the video store.

Sheldon

Give it a second to load. Whenever you're ready AT&T!

Sheldon

I had trouble putting it on and you tried to help and ... that's all she wrote.

Raj

You can't ruin a friendship with sex that's like trying to ruin ice cream with chocolate sprinkles.

Raj

Buck up, sissy pants.

Leonard's mother

You can't blame yourself. When your prefrontal cortex fails to make you happy promiscuity rewards you with the needed flood of dopamine. We, neurobiologists, refer to this as the skank reflex.

Amy

I feel like two totally different people. Dr. Jekyyl and Mrs. Whore.

Penny

The Big Bang Theory Season 5 Quotes

Stephen Hawking: You made an arithmetic mistake on page two. It was quite a boner.
Sheldon: No, no ... that can't be right. I-I don't make arithmetic mistakes.
Stephen Hawking: Are you saying I do?
Sheldon: Oh, no, no, no, of course not. It's just, I was thinking.... Oh, gosh, golly, I made a boo-boo and I gave it to Stephen Hawking.
Stephen Hawking: Great, another fainter.

Tell her her eyes shimmer like opalescent lilies in the lake of the palace of the celestial maidens.

Raj