I think that God gave us a brain, and that it's the only thing we have to survive. All life forms have some advantage, some trick, some claw, some camouflage, some poison, some speed, something to help them survive. We've got a brain. Therefore it's our duty to use our brain.

Each time I do a trilogy it's ten years out of my life. I'll finish Episode III and I'll be 60. And the next 20 years after that I want to spend doing something other than Star Wars. If at 80 I'm still lively and having a good time and think I can work for another 10 years between 80 and 90, I might consider it. But don't count on it. There's nothing written, and it's not like I'm completing something. I'd have to start from scratch. The idea of a third trilogy was more of a media thing than it was me.

It wasn't long after I began writing Star Wars that I realized the story was more than a single film could hold. As the saga of the Skywalkers and Jedi Knights unfolded, I began to see it as a tale that could take at least nine films to tell - three trilogies - and I realized, in making my way through the back story and after story, that I was really setting out to make the middle story.

If I'd have gone to art school, or stayed in anthropology, I probably would have ended up back in film ... Mostly I just followed my inner feelings and passions ... and kept going to where it got warmer and warmer, until it finally got hot ... Everybody has talent. It's just a matter of moving around until you've discovered what it is.

There are a lot of movies that are badly made that I love, and there are a lot of movies that are just beautifully made but I don't like them. And critics have a tendency - that's all they focus on, which is, "I like it. I don't like it. It's good. It's bad."

Anybody that makes films knows the film is never finished. It's abandoned or it's ripped out of your hands, and it's thrown into the marketplace, never finished. It's a very rare experience where you find a filmmaker who says, "That's exactly what I wanted. I got everything I needed. I made it just perfect. I'm going to put it out there."

When Star Wars became a hit and I had a chance to make the other movies, I had to figure out a way to bring Ben back, but a lot of the issues he had to deal with were carried by Yoda. In a sense, I combined Yoda with the spirit of Ben. I wanted Ben to have some kind of influence, but I didn't want it to be a direct influence where he could help Luke. So Ben has managed to keep his identity after he became one with the Force. One of the things he was doing on Tatooine besides watching over Luke was learning how to keep his identity after he became part of the Force.