Sheldon: Dr. Sturgis?
Dr. John Sturgis: Hello, Sheldon. What brings you here?
Sheldon: You never showed up to class.
Dr. John Sturgis: Whoops. Time flies when you're having fun.
Sheldon: What could be more fun than giving a physics lecture?
Dr. John Sturgis: Finishing a physics paper.
Sheldon: Ooh, I like where this is headed.

Mary: Let's say grace.
Sheldon: Hang on, safety first. [puts mittens on]
George Jr.: When are you gonna get over that?
Sheldon: I would think recent events would make you value protection.
Mary: Enough.

Ms. MacElroy: Now, can anyone tell me why Melville shifts the narrative voice from Ishmael to Ahab? [Ms. MacElroy waits for somebody else to raise their hand] Sheldon.
Sheldon: I have a tummyache. I'd like to see the nurse.
Derek: A "tummyache"?
Sheldon: Yes, Derek, I have a tummy and it aches. Ergo, tummyache.
Derek: Ergo?
Sheldon: It's Latin, Derek.
Ms. MacElroy: Go to the nurse.
Sheldon: And to answer your question, the shifting point of view grants the reader a broader perspective of events than typically allowed by first-person narration.
Ms. MacElroy: Where were we?
Sheldon: And "ergo" is Latin for "hence," Derek.

Missy: What's it like to not believe in God?
Sheldon: It's great. Big fan.
Missy: Are you ever afraid you're wrong?
Sheldon: About religion? Never. About other things? Also never.

Sheldon: Okay, here's the plan. End your relationship with Coach Ballard, date Dr. Sturgis again, get him to love you more than ever, then when he least expects it, break his heart and say, "That's for Sheldon."
Meemaw: Great plan.
Sheldon: You think so?
Meemaw: For the sake of this car ride, sure.

Adult Sheldon: Of all my many skills, one of the lesser known is my impressive ability to wait for things. I once stood perfectly still for 38 minutes because a bee was on my shoulder.
Sheldon: [blows, groans]
Adult Sheldon: I once waited four and a half hours to be released from a locker.
Sheldon: Hello? Anyone there? That's okay. I'll wait.
Adult Sheldon: And one time, when Dr. Sturgis was late for a lecture, I stayed longer than everyone.
Sheldon: Where are you all going?
Student: Professor's not here.
Sheldon: I can teach the class. I just need a box to stand on.

George Jr.: I bet the guy who invented the spork is a millionaire.
Jana: I guess.
George Jr.: I wonder if his last name is Spork.
Jana: It comes from "spoon" and "fork." Spork.
George Jr.: Oh, my God. Mind is blown.