Stewie: How you uh, how you comin' on that novel you're working on? Huh? Gotta a big, uh, big stack of papers there? Gotta, gotta nice litte story you're working on there? Your big novel you've been working on for 3 years? Huh? Gotta, gotta compelling protaganist? Yeah? Gotta obstacle for him to overcome? Huh? Gotta story brewing there? Working on, working on that for quite some time? Huh? (voice getting higher pitched) Yea, talking about that 3 years ago. Been working on that the whole time? Nice little narrative? Beginning, middle, and end? Some friends become enemies, some enemies become friends? At the end your main character is richer from the experience? Yeah? Yeah? (voice returns to normal) No, no, you deserve some time off.
More Stewie quotes: http://www.familyguyquotes.com/characters/stewie-griffin-quotes.html
Pretty clever stuff.
I think what you quoted is easily the funniest moment in Family Guy history, especially when taken in whole with the callback to it several episodes later.
Yeah, but Family Guy would never make fun of Scientologists!