When people are temperate in their behavior, in their lives, someone who is addictive or extreme or obsessive can't understand how people can just go through their lives in the middle, and people who are rational and balanced can't understand the opposite. I'm one who's in the extreme camp in almost every area of my life and I always have been. I've observed that I'm in a minority, but I never understand people who are measured.

I've struggled seriously to make movies with very little money, that I write, that I direct, that mean my life to me. The idea that I would offer a part to anyone for any other reason than that he or she was gonna be the best of anyone I could find is so disgusting to me. I don't give my best friends parts unless they deserve them. Ever.

To have six billion people on Earth, two billion of whom are carrying around a warped view of you? That has to register.

You will never convince anyone to do anything unless you believe it should be done.

I think that one of the things that is happening in the so-called "clash of civilizations" is that the confidence that was once obvious in the Western Judeo-Christian tradition has been weakened tremendously. There's a feeling that there's a cynical, corporate layer that's really driving it - one that's ready to compromise - and that the real confident energy around the world is coming from Islam, that the believers take their own faith at face value and with great confidence and in far greater numbers.

[Robert Downey was being singled out for] selective prosecution. He's a sweet guy who never did harm to anyone except himself. He's been doing drugs for 20 years and functioning for 20 years, and in those 20 years there've been hundreds of people who've been getting high constantly and behaved very destructively and have not been arrested. Robert's real problem is he gets caught.

The past is history, the future's a mystery.