Adult Sheldon: If I was going to recapture my insight into a unified field theory, I needed to find a way to put myself back into an altered state of consciousness. Native Americans would sit in sweat lodges for hours to achieve this. I lasted a minute and a half. Self-hypnosis is another means of bringing stillness to the mind. [Sheldon screams] When it isn't giving you a heart attack! The whirling dervishes of Central Asia employ a repetitive spinning technique to achieve a trancelike state.
Sheldon: [retches, falls down]

Adult Sheldon: I didn't realize until years later that my father was only asking questions about lightning and thunder to cheer me up. In fact, he would often pretend to be dumb just to make me feel better.

Adult Sheldon: My father didn't always get the credit he deserved. The advice he gave me actually worked out pretty well. Of course, I never told him.
George Sr.: Talked to Billy.
Missy: Why would you do that?
George Sr.: No, it was good.
Missy: Stay out of my life.
Adult Sheldon: He may not have been the world's greatest dad. But maybe we weren't the world's greatest kids.

Adult Sheldon: Visiting Tam's house for the first time was an emotional roller coaster.
For example, it's traditional in Vietnamese homes to have gruesome religious iconography near the entrance. I did not like that.
However, it's also customary to not wear shoes around the house for sanitary reasons. I did like that.
Interestingly, one of the main ingredients in Vietnamese cooking is an extremely pungent condiment known as fish sauce. I did not like that.
But before every meal, it's common for everyone to wash their hands and face. I did like that.
Forks are not customary in a Vietnamese household. I did not like that.
And instead of napkins, there was one towel for everyone to share at the table. Seriously, what are they thinking?

Ms. Hutchins: Hi, Sheldon, what can I do for you?
Sheldon: Do you have any books or videos on the Lamaze technique?
Ms. Hutchins: Uh-oh. Georgie get that girl pregnant?
Sheldon: It's for me. I need to have a tooth pulled, and I'd like to do it without putting my brain on drugs.
Ms. Hutchins: Okay.
Sheldon: I've seen that commercial with the egg in the frying pan. Very effective.

George Jr.: Can I at least change the music we play here?
Dale: What's wrong with the music we play here?
George Jr.: Nothing, it's just kind of grandpa music.
Dale: Well, how is this "grandpa music"?
George Jr.: Do you listen to it?
Dale: Yeah.
George Jr.: Do you have grandchildren?
Dale: Yeah.
George Jr.: Do you see where I'm going with this?

George Jr.: There you go. I hope you enjoyed your shopping experience.
Man: I did.
George Jr.: I'd let the manager know, But he already does, 'cause it's me.
[later, to a woman holding a tennis racket:]
Woman: I'll take it.
George Jr.: It's been a pleasure to serve you.
[later, to an older man lifting weights:]
George Jr.: You might want to slow down. We don't have a license to sell guns in here. Just kidding, it's Texas. We got them in the back.