Raymond: Of course, I'm not wearing any underwear.
Charlie: There is a Hell, sir. My father's in it. He is looking up right now and he is laughing his ass off.
Charlie: You've got a date, Ray, you're gonna go dancing.
Raymond: Yeah.
Charlie: You know how to dance, Ray?
Raymond: No.
Charlie: I'll have to teach you sometime.
Raymond: Definitely have to dance on my date. Have to learn how to dance. Definitely. Now.
Charlie: Ray, you're not gonna have to dance, but I will teach you sometime.
Raymond: Definitely have to dance with Iris.
Charlie: Sorry I even brought this up. You're right, Ray, you got a date with the only famous dancing hooker in Las Vegas.
Charlie: I'm gonna go take a celebration piss.
Raymond: C-H-A-R-L-I-E, my main man.
Charlie: Who took this picture?
Raymond: D-A-D.
Charlie: And you lived with us?
Raymond: Yeah, 10962 Beachcrest Street, Cincinnati, Ohio.
Charlie: When did you leave?
Raymond: January 12, 1965. Very snowy that day. 7.2 inches of snow that day.
Charlie: Just after Mom died.
Raymond: Yeah Mom died January 5, 1965.
Charlie: You remember that day. Was I there? Where was I?
Raymond: You were in the window. You waved to me, "Bye bye Rain Man", "Bye bye."
Charlie: He's not crazy, he's not retarded but he's here.
Dr. Bruner: He's an autistic savant. People like him used to be called idiot savants. There's certain deficiencies, certain abilities that impairs him.
Charlie: So he's retarded.
Dr. Bruner: Autistic. There's certain routines, rituals that he follows.
Charlie: Rituals, I like that.
Dr. Bruner: The way he eats, sleeps, walks, talks, uses the bathroom. It's all he has to protect himself. Any break from this routine leaves him terrified.
Charlie: That's why they sent you away. Because you hurt me.
Charlie: $200 is about to go to the shit house and Lenny doesn't wanna answer the phone.
Iris: So, what are you doing in Las Vegas?
Raymond: We're counting cards.
Iris: You're counting cards?
Raymond: We're counting cards.
Iris: That's interesting.
Raymond: We're counting cards.
Iris: I know you're counting cards, what else are you doing?
Raymond: Are you taking any prescription medication?
Answer: Susanna was there as well; Charlie just used the "date" as a reason for the three of them to go down for a drink together. He knew Iris wouldn't show up.