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.

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.

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.

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.

Sheldon: Mom, when should I be expecting my testicles?
Woman: What is wrong with him?
Mary: Nothing is wrong with him. Now turn around before I knock your lights out.
Sheldon: Hello.

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

Sheldon: I've been giving geology some more thought.
Tam: Yeah, and?
Sheldon: I've decided it's not really a science.
Tam: It's not?
Sheldon: No, it's more like a hobby. Rock collecting. Childish, really.
Tam: I can see that.

Tam: It got a little uncomfortable.
Sheldon: Why is that?
Libby: Libby's got feelings for me, but I think it's better we just stay friends.

Libby: What are you doing?
Tam: What do you think I'm doing?
Libby: Move your arm before I rip it off.

Sheldon: Regardless, I'm not interested in making any more friends.
Mary: Oh, I don't think that's how you really feel.
Sheldon: It is. From now on, it's a hermit's life for me.
Mary: I bet, when you grow up, you will be surrounded by lots of smart, wonderful friends.
Sheldon: I can't see that happening.