[title: Sci-Fi Club:]
Sheldon: So, what kind of activities does the Science Fiction Club engage in?
Greg: Well, this Friday we're having a screening of Star Wars on laser disc.
Sheldon: I thought this was the Science Fiction Club.
Greg: It is.
Sheldon: Star Wars is science fantasy. The Force is basically magic. At that point, you might as well be watching The Hobbit.
Greg: That's next week.
Sheldon: This is madness.

Mary: Too bad. We are going.
Sheldon: Class is starting tomorrow. I'm not going anywhere.
Mary: Sheldon, do not argue with me. You are going home.
Sheldon: Mom, the people of Germany are obsessed with rules and devoid of humor. I am home.

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: 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.

Sheldon: I'm hurt Dr. Linkletter doesn't want me as a friend.
Mary: Understandable.
Sheldon: I'm also angry. I don't like having two feelings at once. It's annoying. Great, annoyed. That's three.

Dr. Willard: The Moho lies between the mantle and the crust, and...
Sheldon: Excuse me, I'm looking for Dr. Linkletter.
Dr. Willard: He's not here.
Sheldon: Sorry for wasting your time. Oh, this is geology. You're already wasting your time.

Sheldon: I don't get why people think that the social aspect of education is so important.
Missy: Maybe 'cause the education aspect is so boring.
Sheldon: But that's the whole point of school.
Missy: Eh. I'll stick with being popular.
Adult Sheldon: I'd like to point out that one of us has a Nobel Prize. All the other one has is a loving family and friends, which I also have. Boy, did I win!