Yoda lessons

- I'm learning how to be a jedi.

Luke: "That's impossible! It's too big."
Yoda: "No different. Different only in your mind. You must unlearn what you have learned."

Yoda:"Try not! Do or do not, there is no try."

Yoda:"Wars not make one great."

Luke: "I don't believe it!"
Yoda: "That is why you fail."