What is the greatest of first lines in a poem, a story, a novel, a screenplay, a song, anywhere? Or better than greatest, what is the line that bids you to read on?

Here is my favourite, most memorable, robust and inticing:

"You don't know about me without you have read a book by the name of The Adventures of Tom Sawyer; but that ain't no matter."

It is, of course, from Mr. Mark Twain and comes at the top of that much re-worked, revised, belaboured first page of The Adventures of Huckleberry Finn.

What is your nominee for the most inviting first line?