Sheldon: They wanted you?
Leonard: Yes, Sheldon, they wanted me. I'm smart. I'm nice.
Sheldon: I'm smart. I'm nice. And I can eat cheese without clearing out a room.
Leonard: Are you upset he didn't ask you?
Sheldon: Of course not. I just think it's interesting that of all the people he knows, he thinks you're the best choice.
Leonard: Well, he does. I don't see why Penny is so against this.
Sheldon: Well, perhaps Penny's worried that you haven't considered the emotional toll of knowing there's a child out there who is biologically yours but not actually yours.
Leonard: Wow, that's really insightful.
Sheldon: Yeah, I'm taller than you and I don't have asthma.