Mayor Harrison: Hello. This is Mayor Harrison. I understand you are running for office.
Sheldon: Class president. Do you have any advice on how to win?
Mayor Harrison: The most important thing is to get out there and connect with people.
Sheldon: That's tricky. I'm not terribly fond of people.
Mayor Harrison: Well, you might need to get over that.
Sheldon: Assuming I can, how do I connect with them?
Mayor Harrison: A friendly handshake is a great start.
Sheldon: Oh, boy. Now I have to touch them?

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: Mr. Givens, I just wanted you to know that I'm still working hard on my campaign to get more funding for the science department.
Mr. Givens: Oh, great, 'cause I've got to dig up tomorrow's worms myself.

Adult Sheldon: Not all science is created equal. There's physics, the undisputed king of science. There's chemistry. It's no physics, but it's not a bad way to pass a rainy afternoon. And then there's biology, the squishiest of the sciences.

Principal Petersen: [screams]
Sheldon: [screams]
Principal Petersen: What are you doing, standing there?
Sheldon: I wrote a formal complaint letter to the school board on how much money is spent on football. I was hoping you could deliver it to them.
Principal Petersen: You do realize your father's a coach here.
Sheldon: Yes, sir, I do.
Principal Petersen: Maybe you ought to talk to him about this first.
Sheldon: I did. He didn't care for the idea at all.
Principal Petersen: Well, there you go.
Sheldon: There I go what?
Principal Petersen: Let me see that. "Barbaric sport encourages bloodlust similar to Roman gladiator games Christians, lions money better spent on science and learning." You're joking, right?
Sheldon: Did you see the word "bazinga" anywhere in that letter?
Principal Petersen: Out.