Emperor Palpatine: I am looking forward to completing your training. In time, you will call me master.
Luke Skywalker: You're gravely mistaken. You won't convert me as you did my father.
Emperor Palpatine: Oh, no, my young Jedi. You will find that it is you who are mistaken...about a great many things.
Darth Vader: (hands over Luke's lightsaber to Palpatine) His lightsaber.
Emperor Palpatine: Ah, yes. A Jedi's weapon. Much like your father's. By now, you must know your father can never be turned from the Dark Side. And so will it be with you.
Luke Skywalker: You're wrong. Soon I'll be dead...and you with me.
Emperor Palpatine: (chuckles) Perhaps you refer to the imminent attack of your Rebel fleet. Yes. I assure you, we are quite safe from your friends here.
Luke Skywalker: Your overconfidence is your weakness.
Emperor Palpatine: Your faith in your friends is yours.
Darth Vader: It is pointless to resist, my son.
Emperor Palpatine: Everything that has transpired has done so, according to my design. Your friends, out there on the sanctuary moon, are walking into a trap, as is your Rebel fleet. It was I who allowed the Alliance to know the location of the shield generator. It is quite safe from your pitiful little band. An entir...