I always tell people, it's never too late to start saving for retirement. It's not that important how much you have already saved. What's important is that you start saving. And save as much as you can. You will be amazed at how quickly it will build up.

Two big questions that people ask me are: if we make these robots more and more human-like, will we accept them - will they need rights eventually? And the other question people ask me is, will they want to take over?

I begin by looking for megatrends, changes in the world that will create major new demands. My goal is to create a company that can be there to meet those demands.

I always tell people, it's never too late to start saving for retirement. It's not that important how much you have already saved. What's important is that you start saving. And save as much as you can. You will be amazed at how quickly it will build up.

I'd rather have half of my idea change the world than my whole idea be a few papers in a journal.

When I look out in the future, I can't imagine a world, 500 years from now, where we don't have robots everywhere.

When people lose faith in the idea, you have to let them go, because they start to undermine it for everyone else.