Great First Sentences

I have often heard that the first sentence of a short story or a novel is very important to the work, as the first sentence should capture the reader's attention and make him or her want to continue reading the story.  So, as a little audience participation I would like to hear some great first sentences.  You can post them in the comments of this post.  If they are from a book you have read, please source the book.  I also welcome any first sentences that are your own work.