Sheldon: (inspecting a comic book) 40 cents? Outrageous.

Adult Sheldon: As fate would have it, the comic I picked up was called X-Men. Young mutants with incredible powers who were feared and misunderstood by the entire world.
Sheldon: Hey, it's about me.

Tam: What are you doing here?
Sheldon: Oh, hello, Tam.
Tam: I thought you said comic books are for children.
Sheldon: I'm a complicated young man.

Sheldon: I'm enjoying this, but I'm having trouble with the onomatopoeia.
Tam: The what?
Sheldon: The onomatopoeia. Words that imitate sounds. "Kthoom" "Snikt" "Bamf" Writers shouldn't make up words.
Tam: Somebody made up "onomatopoeia".
Sheldon: You challenge me. I like that.

Sheldon: What I find interesting is how many supervillains are scientists: Doctor Octopus, Doctor Doom, Lex Luthor, Green Goblin, the list goes on and on.
Tam: So?
Sheldon: So if the world doesn't respect me, I might change sides.

Pastor Jeff: Sometimes people say to me, "Pastor Jeff, how do you know there's a God?" And I say, "It's simple math. God either exists or he doesn't. So let's be cynical. Worst-case scenario, there's a 50-50 chance. And I like those odds.
Sheldon: That's wrong.

Mary: Shelly, put your hand down. [To Pastor Jeff] Sorry. Please continue.
Pastor Jeff: It's okay, Mary. It's Sheldon, right?
Sheldon: Yes, sir.
Pastor Jeff: Well, Sheldon, why don't you come on up here and tell me how I'm wrong.
Mary: No.
Sheldon: Okay.

Pastor Jeff: So you were saying?
Sheldon: You've confused possibilities with probabilities. According to your analogy, when I go home I might find a million dollars on my bed or I might not. In what universe is that 50-50?

Sheldon: Uh-oh.
Missy: What?
Sheldon: Listen to this. "French philosopher, mathematician and physicist, Blaise Pascal, argued a rational person should believe God exists because you have everything to gain if you're right, and nothing to lose if you're wrong."
Missy: Sounds right.

Sheldon: Meemaw?
Meemaw: What?
Sheldon: Is Dad really okay?
Meemaw: Yes.
Sheldon: I hope you're not bluffing.

Sheldon: Ugh. I'm coming with you.
George Jr.: Why are you wearin' my helmet?
Sheldon: I don't expect this to end well.
George Jr.: And the pillows?
Sheldon: Same answer.

Sheldon: Oh, you better pull over.
George Jr.: Oh, thank God.
Sheldon: Well, don't just sit there follow it.
George Jr.: Why?
Sheldon: It's an ambulance It's going to the hospital.

Sheldon: I need to wash my hands. There are germs here that can kill you.

Pastor Jeff: Yes, Sheldon.
Sheldon: You said he didn't create the sun until day four.
Pastor Jeff: Yeah.
Sheldon: So how could there be light the first three days?
Pastor Jeff: God is light.
Sheldon: So God's a photon?
Pastor Jeff: God's what made photons possible.
Sheldon: And what day did he do that?
Pastor Jeff: I would think day one.

Pastor Jeff: Because the first day had just begun.
Sheldon: So, before the Big Bang?
Pastor Jeff: There was no Big Bang. There was only the Word.
Sheldon: Was the word "kaboom"?

Ms. Hutchins: Hey there, Sheldon. What can I get for you today? Chemistry? Quantum mechanics? Astronomy?
Sheldon: No, nothing fun today. I need to learn how to make a friend.

Ms. Hutchins: Aw, honey, you having a hard time adjusting to high school?
Sheldon: I'm having a hard time adjusting to Earth.

Sheldon: Hello, George.
George Sr.: What?
Sheldon: I do admire your thick head of hair George.
George Sr.: Thanks. What's going on?
Sheldon: Well, I'm practicing the principles in this book.
George Sr.: Why?
Sheldon: Well, I know Mom is concerned that I don't have any friends, so I'm determined to remedy the situation.
George Sr.: Oh.
Sheldon: George.
George Sr.: Well, good for you.
Sheldon: Do you feel complimented when I say your name, George? The book says you should. George.
George Sr.: I suppose. Kind of overdoing it a little, Sheldon.
Sheldon: Well, thank you for your criticism. It also says I should praise any improvements that you've made.
George Sr.: Okay.
Sheldon: I'll get back to you. George.

Sheldon: Go Wolves.
Lisa May: What?
Sheldon: You're a cheerleader, and by saying "Go Wolves," I'm initiating a conversation about something that interests you.
Lisa May: Oh, are you one of those special ed kids?
Sheldon: My mom says I'm special. Would you like to be friends?
Lisa May: I don't think so.
Sheldon: Are you sure? What if I told you I admired your boldly-applied makeup?

Sheldon: Greetings from stall number one. As much as I detest that odd-smelling cigarette, I do applaud your rule-breaking bravado. My name is Sheldon. What's yours?