Dr. Linkletter: My point is, I was experiencing something similar, and there's no shortcut through grief.
Sheldon: Those are wise words.
Dr. Linkletter: Thank you.
Sheldon: It was smart I came to you. You're clearly an expert on humiliation and defeat.
Dr. Linkletter: Sarcasm?
Sheldon: No.
Dr. Linkletter: Leave.
Sheldon: Sarcasm?
Dr. Linkletter: No.
Sheldon: Bye.

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: Hello, Niblingo. Little nibling.
Mandy: What is it, Sheldon?
Sheldon: I was hoping I could try to calm your baby down.
Mandy: Why?
Sheldon: I'm trying new things to build up a tolerance for setbacks and frustration.
Mandy: So you want to use my child for some kind of experiment?
Sheldon: Yes.
Mandy: Okay, here you go.

Dr. John Sturgis: Hang on. Are you familiar with the Fred Astaire song "Pick Yourself Up"?
Sheldon: No.
Dr. John Sturgis: From the beloved musical Swing Time?
Sheldon: Still no.
Dr. John Sturgis: Then prepare to be uplifted. [sings] ♪ Nothing's impossible, I have found ♪ ♪ For when my chin is on the ground ♪ ♪ I pick myself up ♪ ♪ Dust myself off ♪ ♪ Start all over again ♪
Sheldon: I'm not uplifted.
Dr. John Sturgis: [talks] Well, then buckle up for the second verse. [sings] ♪ Don't lose your confidence if you slip ♪ ♪ Be grateful for a pleasant trip ♪ ♪ And pick yourself up ♪ ♪ Dust yourself off ♪ ♪ Start all over again. ♪

Adult Sheldon: The next day, as I walked across campus, I could feel all eyes were on me, judging me for my failure. Look at them laughing at me. It was the closest I ever came to a walk of shame.