I really do think cancer will largely be a solved problem. I think most of the infectious diseases like malaria - our foundation is very involved - once we're finishing polio eradication, then starting up this malaria eradication, and getting that done as fast as we can.

The typical project design time for a large company like IBM - and they keep track of this - is a little over four years.

To create a new standard it takes something that's not just a little bit different. It takes something that's really new and really captures people's imagination. And the Macintosh, of all the machines I've ever seen, is the only one that meets that standard.

The key thing you can do to reduce population growth is actually improve health.

I think of myself as a global citizen.

I believe the government has the right to recover from the heirs to the fortunes of its most successful citizens some portion of those fortunes.

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.