Sheldon: I was exploring dimensional kinematics.
George Jr.: Admit it. He's adopted.
Sheldon: How can I be adopted when I have a twin sister? Think, monkey, think.

Mary: That's enough. Now, let's pray.
Sheldon: A moment please.
George Sr.: Hmm.
Mary: Leave him be.
George Sr.: He can hold hands with his family. It won't kill him.
Sheldon: We don't know that.

Sheldon: Georgie, did you wash your hands before dinner? Or even this week?
George Jr.: None of your business.
Sheldon: Hence the mittens.

Mary: Everybody excited to start school Monday?
Sheldon: I am.
Missy: I guess so.
Mary: Georgie? Freshman year, that's a big deal.
George Jr.: How can I be excited when he's gonna be in the same grade as me?
Sheldon: Don't worry, Georgie. I'm not planning on being in the ninth grade for very long.

Mary: You understand that some people are going to be intimidated by you, because of how smart you are?
Sheldon: Or maybe they'll recognize my intellect and make me their leader.

Sheldon: [observing the older kids outside the high school] Oh dear.

Sheldon: Per the student dress and grooming code, this boy's hair is too long. This boy's wearing sports attire outside a designated area. And this girl's blouse is diaphanous, which means I can see her brassiere.

Pastor: In Matthew nine, verse four, Jesus said, "Why would you entertain evil thoughts in your hearts?"
Sheldon: Do you have evil thoughts?
Mary: Ssh.
Sheldon: I just don't think this part applies to me.
Mary: That's fine. Be quiet and listen.
Sheldon: I'm only nine years old. Most evil doesn't start till puberty.

Mary: How about we lose the bow-tie?
Sheldon: Why?
Mary: Look around, honey. No of the other kids are wearing one.
Sheldon: Well, perhaps I'll start a fad.

George Sr.: You're not gonna make it in this school if you keep ratting people out.
Sheldon: But they were breaking the grooming codes and the dress codes. I saw one boy with a t-shirt that said... [leans in and whispers] "Bite me".
George Sr.: Yeah, that's terrible. [Sheldon nods]

George Sr.: Did you ever wonder why we moved from Galveston to Medford?
Sheldon: I tend to worry about the bigger questions.
George Sr.: Okay. Well, here's why. Your Dad had a real good coaching job and I saw some grown-ups breaking rules.
Sheldon: What'd they do?
George Sr.: I-It's kind of complicated, but football coaches aren't allowed to recruit kids from other high schools to play on their teams.
Sheldon: And you told on them?
George Sr.: Yeah. You know what happened?
Sheldon: Justice descended on the rule breakers?

Sheldon: I'm not going to be assaulted. High school is a haven for higher learning.
George Sr.: Oh, dear God.

Mary: Shelly, it's your last day of summer. Go out and enjoy it.
Sheldon: But I have to learn the student handbook. Ooh, did you know extreme hairstyles, goatees and mustaches are not allowed?
Mary: I didn't.
Sheldon: I personally find that very reassuring.

Mary: Go play.
Sheldon: "Go play" if only life were that simple.

Billy Sparks: Hey, Sheldon!
Sheldon: Hello, Billy Sparks. Hello, Matilda Sparks.
Billy Sparks: I heard you're going to high school tomorrow.
Sheldon: I am. You're going to have to find someone else to torment on the playground.
Billy Sparks: "Torment"?
Sheldon: (sighs) It means to maliciously harass.
Billy Sparks: "Her ass"? (chuckles) That's funny.
Sheldon: Well, this was nice.
Billy Sparks: [holds chicken close to Sheldon's face] Hey, doofus! (squawks)
Sheldon: Mom!

Missy: She's lying. She just said that to make you feel better. Mom doesn't lie.
Sheldon: Sure, she thinks the Earth was made in six days, but that's 'cause she's gullible, not a liar.

Mary: Shelly, you don't really need a tie.
Sheldon: I have to find my tie. I have to find my tie.
Mary: Be right back.
Sheldon: Professor Proton wears a bow-tie!

Sheldon: Would you like to play a driving game?
Mary: Not really. I always lose.
Sheldon: I know. That's why it's fun.

Sheldon: That boy has an exposed tattoo.
Mary: He does.
Sheldon: I wonder if he knows that's in violation of the dress code.

Sheldon: I smell ammonia. They must've done a thorough cleaning recently. I like that.