Penny Hofstadter: I'd be in charge of people that are far more educated with more experience; what if they don't listen to me?

Bernadette Rostenkowski-Wolowitz: Then you be really mean to them. Have I taught you nothing? Penny, everybody feels like you do. Like they're not good enough, not smart enough.

Penny Hofstadter: What, even you?

Bernadette Rostenkowski-Wolowitz: Of course.

(Assistant enters the room...)

Assistant: Dr. Rostenkowski, you wanted me...

Bernadette Rostenkowski-Wolowitz: Hey, did they not teach knocking at Stanford? Get out! (he runs away) I love that kid.