That's the issue that I've been exploring: How did the Republic turn into the Empire? That's paralleled with: How did Anakin turn into Darth Vader? How does a good person go bad, and how does a democracy become a dictatorship? It isn't that the Empire conquered the Republic, it's that the Empire is the Republic.

Part of the issue of achievement is to be able to set realistic goals, but that's one of the hardest things to do because you don't always know exactly where you're going, and you shouldn't.

Sometimes people are surprised to learn that most of the films I've made don't work. They've been released but nobody has ever seen them. Maybe 40 percent of them are very successful. That's a very high percentage; most people have maybe 10 or 15 percent of their films work.

Human nature means battling constantly between being completely self-absorbed and trying to be a communal creature. Nature makes you a communal creature. The ultimate single-minded, self-centered creature is a cancer cell. And mostly, we're not made up of cancer cells.

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."

I wanted Yoda to be the traditional kind of character you find in fairy tales and mythology. And that character is usually a frog or a wizened old man on the side of the road. The hero is going down the road and meets this poor and insignificant person. The goal or lesson is for the hero to learn to respect everybody and to pay attention to the poorest person because that's where the key to his success will be.

I was never interested in being powerful or famous. But once I got to film school and learned about movies, I just fell in love with it. I didn't care what kind of movies I made.