We should be looking at our regrets not as meaningless, debilitating phenomena but as signals, information, and data. If we do that systematically? We can use this emotion as a transformative force for progress.

I made a principled decision that none of my wealth will be passed on as inheritance, that my capital will work for philanthropic causes. In other words, philanthropy is the reason I make money.

Uncertainty creates a strategic incentive for a rational man to go to war. That's not necessarily a mistake as, at the moment, people may wish they had better information, but they may also realise they've made the optimal choice.

There is a significant part of the Greek economy- maybe 30-40%- is not in the 'official' books. That has to be reined in. To put this in context, if that is reined in… to a large extent, the revenue side of the Greek problem would be fixed.

We're discussing the challenging feat for our species of being both self-advocating and relationship-oriented, particularly in stressful circumstances. When stressed, we all tend to lean towards self-preservation, which may be perceived as a threat by others.

I've always been self-taught, sort of like the Grandma Moses of acting. If I'd gone to drama school, I would probably have had a very different career- perhaps not as much fun in some ways.

You cannot fully realize your own self in isolation. It's a collective effort; your uniqueness is essentially shaped by everyone else in the world. Everyone else plays a role in sculpting your distinct identity. Individuality is essentially a community project.

Even if we end up with better regulations, we'll still have 300 million guns washing around the US, and that's going to be a huge problem for decades, because guns last a long time.

What I've learned about tech is that it's cold and robotic; you don't know any of the people who make the stuff you live on.

If you look historically at the historical contours of wealth- it's primarily created through private ownership. That's always been the case- and I believe it always be. Having said that…. the lines begin to get blurred when you start to look at places like Latin America and Mexico where the state-owned enterprises are dominated by individuals- like a Carlos Slim, for example…. or if you look at state-owned assets being privatised in a place like Russia where former KGB agents are now industrial capitalists.

Art is a universal communicator, it is one of the ways that allows me to engage with audiences that might not otherwise think about what we're doing in space every day that's helping improve life here on Earth. And it's a way to help them consider the view from space and do a little bit of Earthling and Earth appreciation.

I used to be skeptical about whether I could live an additional 5 years. Now, I'm convinced that I could live 20 years beyond what I would have done. Drugs on our near horizon will give us easily another 20 years, and the drugs not far behind that, another 100. I've never been more excited about the prospect of human health than I am right now.