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.

It's hard work making movies. It's like being a doctor: you work long hours, very hard hours, and it's emotional, tense work. If you don't really love it, then it ain't worth it.

The sciences are the 'how,' and the humanities are the 'why' - why are we here, why do we believe in the things we believe in. I don't think you can have the 'how' without the 'why.'

From the outset, I conceived Star Wars as a series of six films, or two trilogies.

Learning to make films is very easy. Learning what to make films about is very hard.

'Star Wars' is fun, its exciting, its inspirational, and people respond to that. It's what they want.

I am very concerned about our national heritage, and I am very concerned that the films that I watched when I was young and the films that I watched throughout my life are preserved, so that my children can see them.