Reader Friday: Your Favorite Line

What's your favorite line from a book or movie? I know there are a lot to choose from, but whenever I'm asked that I always go immediately to the great Bette Davis in All About Eve, turning to the partygoers and saying, "Fasten your seatbelts. It's going to be a bumpy night." (You really have to watch the clip and listen to the voice for the full effect).

What's your favorite line?