Billy Sparks: What now?
George Sr.: Uh, run outside and turn the water back on.
Billy Sparks: [hands over screwdriver] Here, I'm not allowed to run with this.
Brenda Sparks: We've had a lot of incidents.

Billy Sparks: Hello.
Herschel Sparks: Hey.
George Sr.: Hey, Billy.
Billy Sparks: Was this fence window always here?
Herschel Sparks: No, son, that's a new fence window.
Billy Sparks: Anybody else getting dizzy?

Sheldon: How do we love our neighbors when our moms hate each other?
Billy Sparks: Who does your mom hate?
Sheldon: Your mom.
Billy Sparks: Hey, my mom hates your mom. Small world.

Billy Sparks: Who's Melissa?
Missy: Me.
Billy Sparks: Then who's Missy?
Missy: "Missy" is short for "Melissa." Like how "Billy" is short for "William."
Billy Sparks: I don't understand.
Missy: You know how your real name is William?
Billy Sparks: I'm Billy.
Sheldon: No, we call you Billy, but your real name is William.
Billy Sparks: But my underpants say "Billy" in them. Mom, is my name William?
Brenda Sparks: [sighs] Yeah.
Billy Sparks: Then whose underpants am I wearing?

George Sr.: Look. I know you don't respect what I do as a coach.
Sheldon: Maybe you do know me.
George Sr.: But this is a thing I actually know about. I've seen it happen to my players. I've seen it happen to pros in golf. In baseball. The answer is always the same. Stop thinking and get out of your own way.
Sheldon: I don't know how to do that.
George Sr.: Have you ever heard the Nike slogan "Just do it"?
Sheldon: I'm familiar with the phrase "let's do it," uttered by Gary Gilmore, the last person to be executed by firing squad in America.
George Sr.: Okay, well, it's a shoe slogan. And it's good advice. The answer is already in your head. Don't think so hard. Just do it.
Sheldon: I'll try.
George Sr.: Good man.

Adult Sheldon: Of all the tests one takes in school, my favorite was the midterm. Finals weren't bad, but they also meant summer was approaching. I don't believe in religion, but sunshine, picnics and pool parties are proof hell exists.

Sheldon: I can't remember what the zeroes of the Bessel function are.
Dr. Linkletter: You didn't memorize them?
Sheldon: Of course I did... October 7th, 1988. I had just had a bowl of Teddy Grahams.
Dr. Linkletter: Then what's the problem?
Sheldon: I'm blanking, but I'll get it.
Dr. Linkletter: Sorry, son, class is over.
Sheldon: No, I can do this.
Dr. Linkletter: It's just one question. You'll still pass.
Sheldon: Sheldon Cooper doesn't "just pass."
Dr. Linkletter: I have an idea. Let me see the test. [Sheldon hands him the test] Thank you.
Sheldon: Sheldon Cooper isn't always that gullible.
Dr. Linkletter: He was today.