Vroman's Trivia: Day 1

Before we start, a couple of announcements: Vroman's employees and relatives of employees are ineligible to win, but are encouraged to email me their guesses anyway. Please don't answer the question in the comments. This will ruin it for the rest of us. Anyone posting the answer in the comments will receive -3 points and my undying scorn. Remember, email me your guesses. (pbrown@vromansbookstore.com)

Good luck. This first one is tough. They might get easier. Or not.

What book is this quote from?