Mary: You smoke marijuana?
Sheldon: Mom!
Libby: No, ma'am.
Tam: Just say no. [Mary shoots him an unimpressed look]

Tam: Look at this, my mother left me a note. "You can do better. Mom." Not "Love, Mom," not "XO, Mom," just "Mom."

Tam: Hey, I've been looking all over for you. Do you know how popular we are?
Sheldon: We?
Tam: Yeah. I put the word out I was helping you with the football stats. And since I'm Asian, they bought it.

Tam: Spending the Thanksgiving weekend working in my family's convenience store, I observed my father and mother working from 6:00 in the morning till 10:00 at night. My hypothesis was that economic advancement for immigrant families is more important than celebrating a holiday where people eat until they pass out in front of the TV.
Mr. Givens: All right, Tam. Well, based on your observations and hypothesis, were you able to make a prediction?
Tam: Yes. At some point, my father would die prematurely from stress. And my mother will come live with me, where she will constantly disapprove of my hot, blonde, American wife.
Mr. Givens: Okay. Uh, I think we all learned something there. Uh, thank you, Tam.

Adult Sheldon: As you can see, sometimes a person can be both incredibly intelligent and full of baloney.

Adult Sheldon: Anger is an ugly emotion. Unbridled rage even more so. And when it bubbled up inside me, I channeled it the only way I knew how. I cleaned the house like a man possessed.

George Sr.: Oh.
George Jr.: Oh, what?
George Sr.: You didn't mention she was black.
George Jr.: Was I supposed to?
George Sr.: No, 'course not.
George Jr.: Then why bring it up?
George Sr.: It just wasn't what I was expecting.
George Jr.: What were you expecting?
George Sr.: It's a big school. Why are you right here?
George Jr.: They've got some books in there about Martin Luther King. Maybe you should go read one.