The early personal computers were not very powerful so the idea of feeding their program into a small amount of memory requires immense skill.

Digital reading will completely take over. It's lightweight and it's fantastic for sharing. Over time it will take over.

There's 20 companies that I have investments in - some batteries, some solar-thermal, one big nuclear thing. We need hundreds and hundreds of companies like that, so that in a 20-year time frame we really are starting to change the energy infrastructure.

We make the future sustainable when we invest in the poor, not when we insist on their suffering.

Headlines, in a way, are what mislead you because bad news is a headline, and gradual improvement is not.

I actually thought that it would be a little confusing during the same period of your life to be in one meeting when you're trying to make money, and then go to another meeting where you're giving it away. I mean is it gonna erode your ability, you know, to make money? Are you gonna somehow get confused about what you're trying to do?

Most people overestimate what they can do in one year and underestimate what they can do in ten years.