Darth Vader: I’ve been ready for you, Obi-Wan. We meet once more ultimately. The circle is now full. Once I left you, I used to be however the learner. Now I'm the grasp.
Ben Kenobi: Solely a grasp of evil, Darth.
Darth Vader: Your powers are weak, outdated man.
Ben Kenobi: You may’t win, Darth. When you strike me down… I shall turn into extra highly effective than you may presumably think about.
From the film Star Wars: Episode IV – A New Hope (1977)