Leonard: No, no, I agree with Bernadette. If Pemberton cheated, maybe he shouldn't have a career in the first place. There's plenty of people that didn't plagiarize.
Penny: And a few of us who did, but it's only 'cause The Scarlet Letter was so boring.
Leonard: Aw, I love The Scarlet Letter. That's where I got my taste for bad girls.

Leonard: Penny, as a scientist, my job is to figure out why things happen. But I don't think I'll ever understand how someone like me could get to be with someone like you. You know maybe I don't need to understand it, I just need to be grateful. I love you, Penny.

Leonard: What would you be if you were attached to another object by an inclined plane, wrapped helically around an axis?
Sheldon: Screwed?
Leonard: There you go.

Leonard: My point is, while you're spending all this time on your own, building computers or practicing your cello, what you're really doing is becoming interesting. When people finally do notice you, they're gonna find someone a lot cooler than they thought. And for those of you that were popular in high school, it's over, sorry. Thank you. Congratulations.

Sheldon: Are you all right? You seem distracted.
Amy: Yeah, sorry. I'm just trying to figure something out.
Sheldon: Is it what to get me for our anniversary? 'Cause I'll give you a hint: it's already in my Amazon basket. Just click "buy now." I filled out the gift card for you. Apparently, I'm the light of your life.

Sheldon: So I was talking to my mom about our Pemberton and Campbell situation.
Amy: Really? What'd she say?
Sheldon: Apparently, Old Testament God would bring down his wrath on them for being deceitful, but New Testament God would forgive them.
Amy: So couldn't we just bring down our wrath and ask the New Testament God to forgive us?
Sheldon: You know, I asked her that very question.
Amy: And?
Sheldon: She said I was full of California sass.

Barry Kripke: Oh God, I hate that guy.
Sheldon: That's strange; you seem quite fond of him.
Barry Kripke: I was only being polite. Pemberton is a grade A weasel.
Sheldon: How do I know you're not just being polite when you say it's nice to see me?
Barry Kripke: I have literally never said that to you.