Sheldon: "I needed to get on the shuttle so I could escape this ridiculous planet. Spoiler alert, I'm still here." 

Mary: "Honey, perhaps you should lose the bow tie. Look around, nobody else is wearing one."Sheldon: "Well perhaps I'll start a fad."

Sheldon: (to his female teacher) "In violation of the grooming code, you have a bit of a moustache."

Sheldon: "Welcome to the church of Mathology. Today I'd like to talk about prime numbers and why they give us joy.

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

Missy: "I don't need to be good at Math, I have beautiful hair."

Sheldon: "I started taking books out of the library, without stamping the cards. Before you judge me too harshly, I always brought them back on time. I was rule-breaker, not a lunatic."

George: "How did I get a rocket scientist for one son and a rodeo clown for the other?"

Teacher: "Sweetheart, you should really pursue music."Sheldon: "No thank you, musicians take drugs."

Mary: (to a nosy church-goer) "Nothing is wrong with him, now turn back around before I break your neck." 

Sheldon: "Dad, can we afford a computer?"George: "You do my taxes, what do you think?"Sheldon: "Never mind."

Sheldon: "What I find interesting, is how so many supervillains are scientists. If the world doesn't respect me, I might change sides."

Mary: "Young boys who don't spend time with their daddies grow up to be oddballs."George: "I hate to tell you, but that ball is already pretty odd."

Meemaw: "Look at my face, tell me what you see."Sheldon: "That you're old." Meemaw: "It's a good thing I love you."

Young Sheldon starts Monday 12 February at 9pm on TVNZ 2, or you can watch it from the start right here

Iain Armitage as Sheldon Cooper
Zoe Perry as Mary Cooper.