On 'Into The Wild' I spent months risking my life and on 'Speed Racer' I spent 60 days acting in front of a green screen. No danger to my physical self but I sure had to use my imagination.

Kindness and intelligence don't always deliver us from the pitfalls and traps: there are always failures of love of will of imagination. There is no way to take the danger out of human relationships.

Next to power without honor the most dangerous thing in the world is power without humor.

People crushed by laws have no hope but to evade power. If the laws are their enemies they will be enemies to the law and those who have most to hope and nothing to lose will always be dangerous.

I don't know what can be so dangerous about giving people hope.

But as far as Twitter I'll be in a restaurant and I'll get home and somebody tweeted and they talked about what I ordered and what I was wearing. In some cases that could be dangerous because you don't want everybody to know where you are every second of every day.

The curious are always in some danger. If you are curious you might never come home.

Most people if you live in a big city you see some form of schizophrenia every day and it's always in the form of someone homeless. 'Look at that guy - he's crazy. He looks dangerous.' Well he's on the streets because of mental illness. He probably had a job and a home.

If you go away on location for three months and your wife stays at home you've made a whole new load of friends and she's made a whole new load of friends and you get home and you're kind of strangers.

Perhaps it is a universal truth that the loss of liberty at home is to be charged to provisions against danger real or pretended from abroad.