Luke:
Master, moving stones around is one thing. This is totally different.
Yoda:
No. No different. Only different in your mind. You must unlearn what you have learned.
Luke:
All right, I'll give it a try.
Yoda:
No. Try not. Do… or do not. There is no try.
Vader:
Obi Wan never told you what happened to your father.
Luke:
He told me enough! He told me you killed him!
Vader:
No, I am your father.