Mary: Why don't you two have a seat.
Missy: In here? Did somebody die?
Mary: No, I just want to talk to you.
Missy: They're getting divorced.
Sheldon: At least they waited until one of us was in college.
Mary: We are not getting a divorce. Just sit.

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.

Principal Petersen: Our next young speaker needs no introduction, but that didn't stop him from writing one and making me read it. [laughter] "Fun fact." [audience groans, murmurs] I hear you. "The word 'valedictorian' is from the Latin 'valedicere,' meaning 'to say farewell.' It is primarily used in the United States, Canada, the Philippines and Armenia." Maybe that fact's more fun in Armenia. Please welcome your valedictorian, Sheldon Cooper.
Mary: Yay, Shelly!
Sheldon: Hello. I'm not very comfortable speaking in front of crowds. But there's a technique to reduce stage fright by focusing on one person in the audience and delivering your speech just to them. That's what I'll be doing today. If it weren't for this person, I wouldn't be here right now. They've taught me a lot, and it's by their example that I found the courage to move forward into this new and exciting chapter of my life. Missy... ...this is for you. Change can be scary, but I know we're going to be fine... ...because like you said, "It's okay to be scared. We just have to do it anyway." So if any of my fellow graduates are nervous about the future, know that you're not alone. I suggest you all try to be as brave as my twin sister. That's my plan. Missy, I wish I could give you advice about middle school, but I was so smart, I skipped it. If you make it to high school, we'll talk. Thank you. [applause]

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.

Meemaw: How much did Dale pay you?
George Jr.: Uh, minimum wage plus five percent commission.
Meemaw: I'll give you half of that.
George Jr.: So, two and a half percent commission?
Meemaw: No, half of the minimum wage part.
George Jr.: What about a percentage of these?
Meemaw: [laughs] Yeah, right.
George Jr.: I'm serious. If it wasn't for me, none of this would be happening.
Meemaw: I'm your grandmother. If it weren't for me, you wouldn't be happening.

Sheldon: [knocks on door] Missy, I know you're upset. Would you like a hot beverage?
Missy: [o.s.] Go away.
Adult Sheldon: Every culture has their taboos. In the Ukraine, it's rude to whistle indoors, and they're correct. Not a fan. In our society, any discussion of human reproduction seems to be so upsetting, it causes nothing but chaos. Lost jobs. Lost friends. Sleepless nights. Even the word "sex" provokes an uncomfortable reaction. I thought "fornicate" might work, but that seemed too judgy. Then I found the perfect word, a word so bland and clinical that it would be impossible to take offense to it.
Sheldon: "Coitus." That'll work.

Meemaw: I'll tell you what, we're in the gambling business, why don't we gamble for it?
George Jr.: Okay.
Meemaw: Great. The number I'm thinking of in my head... is it odd or even?
George Jr.: How dumb do you think I am?
Meemaw: In my defense, you used to be dumber.