You know, I'm a big believer in touch and digital reading, but I still think that some mixture of voice, the pen and a real keyboard - in other words a netbook - will be the mainstream on that.

I did not even finish my studies

Taking a look back, one big reqret is, I left Harvard with no real awareness of the awful inequities in the world. The appalling disparities of health and wealth and opportunity that condemned millions of people to the lives of despair. I learned a lot here at Harvard about new ideas and economics, and politics. I got great exposure to the advances being made in the sciences. But humanities greatest advances are not in its discoveries, but in how those discoveries are applied to reduce inequity.

I don't think there is any philosophy that suggests having polio is a good thing.

If empathy channels our optimism, we will see the empathy and the diseases and the poor school. We will answer with our innovations and we will surprise the pessimists.

...one of the most inventive forms of creative capitalism involves someone we all know very well. A few years ago, I was sitting in a bar here in Davos with Bono. Late at night, after a few drinks, he was on fire, talking about how we could get a percentage of each purchase from civic-minded companies to help change the world. He kept calling people, waking them up, and handing me the phone to show me the interest.

In three years, every product my company makes will be obsolete. The only question is whether we will make them obsolete or somebody else will.