"[Darth Vader: I've been waiting for you, Obi-Wan. We meet again at last. The circle is now complete. When I left you, I was but the learner. Now, I am the master.] Only a master of evil, Darth. [Darth Vader: Your powers are weak, old man.] You can't win, Darth. If [my blade should find its mark, you shall cease to exist. But I warn you: if] you strike me down, I shall become more powerful than you can possibly imagine. [Darth Vader: You should not have come back.]"