The American Book Review has posted what they consider to be the best 100 opening lines. Guess who is in the top ten? But here is my favorite:
In the last years of the Seventeenth Century there was to be found among the fops and fools of the London coffee-houses one rangy, gangling flitch called Ebenezer Cooke, more ambitious than talented, and yet more talented than prudent, who, like his friends-in-folly, all of whom were supposed to be educating at Oxford or Cambridge, had found the sound of Mother English more fun to game with than her sense to labor over, and so rather than applying himself to the pains of scholarship, had learned the knack of versifying, and ground out quires of couplets after the fashion of the day, afroth with Joves and Jupiters, aclang with jarring rhymes, and string-taut with similes stretched to the snapping-point. —John Barth, The Sot-Weed Factor (1960)
Thanks to Vic at Jane Austen's World for finding this.