The first Star Wars film was truly a genesis moment for the franchise. Iconic characters like Obi-Wan Kenobi and Darth Vader found their narrative footing in the classic 1977 film. Episode IV - A New Hope also painted a captivating picture of a distant galaxy, which housed both an epic civil war and a mysterious magic. But the film wouldn't have found much success without its popular protagonist, Luke Skywalker.
Source:https://www.cbr.com/luke-skywalker-infamous-line-tragic-hero/