Penny: Has Leonard ever dated any regular girls?
Sheldon: Well, I assume that you're not talking about digestive regularity, because I've come to learn that such inquiries are inappropriate.
Penny: No, I mean has he ever dated someone who wasn't a brainiac?
Sheldon: Oh, well there was this one girl who had a PhD in French Literature.
Penny: How is that not a brainiac?
Sheldon: Well, for one thing, she was French. For another, it was literature.
Sheldon: Well, I assume that you're not talking about digestive regularity, because I've come to learn that such inquiries are inappropriate.
Penny: No, I mean has he ever dated someone who wasn't a brainiac?
Sheldon: Oh, well there was this one girl who had a PhD in French Literature.
Penny: How is that not a brainiac?
Sheldon: Well, for one thing, she was French. For another, it was literature.
Penny : Has Leonard ever dated any regular girls?
Sheldon : Well, I assume that you're not talking about digestive regularity, because I've come to learn that such inquiries are inappropriate.
Penny : No, I mean has he ever dated someone who wasn't a brainiac?
Sheldon : Oh, well there was this one girl who had a PhD in French Literature.
Penny : How is that not a brainiac?
Sheldon : Well, for one thing, she was French. For another, it was literature .
http://www.tv-quotes.com/shows/the-big-bang-theory/quote_20842.html