Billy Sparks: You can cheat off me if you want. I studied.
Missy: [whispers] Thanks.
Adult Sheldon: I'm not saying it was God or zero, but a small miracle did happen that day. Billy passed the test with a 68 and went on to the seventh grade. Where he remained for the next several years.

Adult Sheldon: I didn't realize until years later that my father was only asking questions about lightning and thunder to cheer me up. In fact, he would often pretend to be dumb just to make me feel better.

Adult Sheldon: Visiting Tam's house for the first time was an emotional roller coaster.
For example, it's traditional in Vietnamese homes to have gruesome religious iconography near the entrance. I did not like that.
However, it's also customary to not wear shoes around the house for sanitary reasons. I did like that.
Interestingly, one of the main ingredients in Vietnamese cooking is an extremely pungent condiment known as fish sauce. I did not like that.
But before every meal, it's common for everyone to wash their hands and face. I did like that.
Forks are not customary in a Vietnamese household. I did not like that.
And instead of napkins, there was one towel for everyone to share at the table. Seriously, what are they thinking?

Adult Sheldon: I've fought many digital battles in my life, but none are as memorable as this first one with my Meemaw. By handing me the controller, she was telling me she believed in me. That inside my small, fragile frame beat the heart of a hero.

Meemaw: How about this... Why don't you get one of your girlfriends to find out how he feels about you.
Missy: Why?
Meemaw: Because then you don't have to put yourself on the spot.
Missy: Okay. And if he doesn't like me back, I'll just keep being mean to him until he does.
Meemaw: I don't know why that works. Men are dumb.
Missy: Does that mean we're dumb for liking 'em?
Meemaw: It's not a good look for us.

Sheldon: Okay, your basic arithmetic skills are disappointing but functional.
Billy Sparks: Thank you.
Sheldon: All right, let's talk about negative numbers.
Billy Sparks: I'm all ear.
Sheldon: "Ears."
Billy Sparks: No. "Ear." This one's clogged.

Sheldon: All right, I'm given to understand you have a test coming up on negative numbers and fractions.
Billy Sparks: Yeah.
Sheldon: So, what part don't you understand? [Billy is silent] Oh, boy. Let's take it back a step. Where do you stand on addition, subtraction, multiplication and division?
Billy Sparks: I'm against it.
Sheldon: [exhales] [quietly] Oh, boy.