Forty years after Star Wars first inspired a generation of moviegoers, the universe George Lucas built in his imagination is more relevant than ever. Its story of triumph over evil, of a hero’s tragic fall and eventual redemption, has become an inextricable part of our culture. It’s rare to find somebody who’s never seen a Star Wars film — altogether impossible to imagine someone who’s never encountered the saga secondhand through references or quotations. It continues to enthrall audiences the world over. Four decades after Artoo first set out across the Tatooine desert in search of Obi-Wan Kenobi, StarWars.com looks back some of the most memorable lines the films and TV shows have to offer.