You have to be clear about the purpose of what you're making. If you're making a film that's going to cost a lot of money- inevitably it will be a commercial endeavor by a studio or financier- and you have a responsibility to make that investment worthwhile; certainly, if you don't, you won't be working in the industry for very long.

It should remain a prescription drug — because you need instructions at the same time on what to do.

I am a father of two small children. When you have children, you have to ask yourself what the world will look like in the next 80-100 years, because people get that old these days if everything goes well. Last but not least, as a father I see it as my responsibility to think about my actions and my motives.

The test for any belief isn't whether it makes you feel good. It's whether it makes you better at engaging with reality. That's not self-help. That's applied science.

Risk naturally triggers fear—fear of a bad outcome. But using reason to manage risk means applying a more analytical approach, almost like a mathematical assessment of risk and reward. If the odds are against you, how bad is the downside really?

What investors want the most is a team committed to a cause for the right reasons (passion about solving a problem, not passion about financial game), who can go and get people to buy into the vision, and who can build and manage teams.

What was broken in journalism was not a lack of demand for good stories nor a lack of journalists or the format of stories and distribution – the thing that was broken was the business model.

This is a race to the future, a future powered by renewable energy sources and underpinned by efficient energy use. The winning nations, corporation and citizens will reap enormous benefits in terms of jobs, sustainable economic development, energy security and vastly improved local environments.

To me, writing a song is like a ball game. You bounce the ball back and forth until someone doesn't want to play anymore. When you make music, you want to make someone feel something. So if you write in collaboration, you can have a good reality check if you can make each other feel something with every new word, every new melody.

War teaches you that there are many different types of people, good and bad, and you have to understand that good and evil co-exist, and it's up to you to calculate your way through the world, understanding where people are rooted.

'Brand,' is what journalists and industry-people say… we say culture movement. As artists we say culture! Movement! And analysts say brand. I don't know what a brand is, but I know what a freakin' movement is…. if you want to know what a culture-movement is, remember that Dr. Martin Luther King didn't stand up and say, 'here's our brand!' – he created a movement.

While participatory culture can create a Wikipedia, it is not likely to produce something like the Star Wars franchise. I don't think that's a problem, because I don't think we have to choose between participatory and top-down culture – both will thrive.