Other people might have family - three kids or five houses. In my case, that doesn't exist. I'm going to give everything away. Everything has been transferred to charitable trusts. There is no question about that. The question is where, not if.

Most countries in Africa have the capacity to be great agricultural producers, but they do only subsistence production. So a family will produce for themselves and nothing more. Why? Because of the systems: The markets are not there to go beyond.

At the end, the key thing is you've got to live with yourself. That's the real test. Everything else is fleeting.

Other people might have family - three kids or five houses. In my case, that doesn't exist. I'm going to give everything away. Everything has been transferred to charitable trusts. There is no question about that. The question is where, not if.

Everybody is different and I think that we live in a material world. But for me, possessing things is not that interesting. Living in a grand environment to show myself and others that I have wealth has zero appeal. Whatever I own is temporary, since we're only here for a short period of time. It's what we do and produce, it's our actions, that will last forever. That's real value.

Possessing things is not that interesting. Living in a grand environment to show myself and others that I have wealth has zero appeal.

California is a place of invention, a place of courage, a place of vision, a place of the future. People who made California what it is were willing to take risks, think outside convention and build.