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.

Penny: I have no reason to ... "B" mad at you. Minus.
Leonard: Wow.
Penny: That's right. On my paper. Not yours, mine, you punk-ass elf.

Bernadette: So, I was taking a shower this morning, and when I got out, I started to dry off with what I thought was a towel but turned out to be Howard's mom's underwear. I had to take another shower. It wasn't enough. Nothing will ever be enough.

Bernadette: Why do you have a history textbook?
Penny: No, it's not a big deal. Just taking a class at the Pasadena Community College.
Bernadette: Thats great. I didn't know you wanted to go back to school.
Penny: It's just one history class. Look, I didn't finish college, so I thought I would give it a try.
Amy: Not to mention, your acting career is going south like Sherman. Read about it in your book.

Bernadette: Why would you be embarrassed to tell us?
Penny: No, I'm not embarrassed. I just didn't want anyone to know because I haven't told Leonard yet.
Amy: Why wouldn't you tell Leonard?
Penny: Because it's me going back to school, and he's gonna be all "You can do it!" and "How can I help?" and "I'm so proud of you". Ugh!

Bernadette: I just can't believe you could keep something like that from him.
Amy: You guys have got to be the weirdest couple I know.
Penny: Really? You can't think of anyone weirder?
Amy: I can, but she's sitting right there.

Sheldon: It is glorious. One of the greatest intellects of our time has agreed to engage with me in a gentlemanly battle of wits. And I'm spanking him so hard his grad students won't be able to sit down.

Amy: You know, when one male dominates another, his testosterone level rises.
Sheldon: What's your point?
Amy: It's exciting to think you might be getting a testosterone level.

Penny: Okay, listen, there's something I need to tell you. I've been thinking about going back to school for a while now. So a couple months ago, I started taking a history class at the community college.
Leonard: Oh. That's great. Great, great, great. Why wait so long to tell me?
Penny: I don't want you to make a big deal out of it.
Leonard: Why do you think I'd be like that? I get it, you're taking one class. It's nice. Maybe if it goes well, you take another, you enroll full-time. Ooh, be sure to keep an eye on which credits transfer to a four-year college.
Penny: You're making it a big deal.
Leonard: Sorry. (nonchalantly) Whatever. It's all good.

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.