"Yeah, yeah. I said I wanted to hear it. I didn't say I'd do something about sending you back, but go ahead and tell me if it will make you happy."
"Okay. I'll begin with a question. Do you know anything about the fourth dimension?"
George was silent, but Myra said: "I know all about the fourth dimension."
"You just think you do. Actually, you don't know a thing about it. A lot of fuzzy thinking here in the world of three dimensions, but you really don't know a thing about it."
"Oh," said Myra.
"You tell her, Arl, old boy," George said. "You tell her. That guy Fort didn't know what he was talking about."
"Fort? Fort? Oh—yes he did. He knew what he was talking about. But he didn't know how or why. This is a world of three dimensions, right?"
"Uh-huh."
"Well, let's assume you had a world of two dimensions. Of length and breadth, but no thickness. How would you get a world of three dimensions?"