Ridiculous sums of money can be confusing.

Antitrust is the way that the government promotes markets when there are market failures. It has nothing to do with the idea of free information.

My fascination is broadly with biology and the fact that our increased understanding of biology allows for breakthroughs in a broad set of diseases.

The only role other than paying their taxes, whatever those are, the only role for philanthropy broadly - of which the rich should give disproportionately - the more, the better - and I think there is a positive trend in that direction - there are certain risk-taking things, like trying out a new type of charter school or funding a new kind of medicine.

Creating a piece of software is always complicated because you're doing something new. If you just wanted something that had been done before you'd just use that old piece of software. So there are no repetitive tasks.

...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.

Measles will always show you if someone isn't doing a good job on vaccinations. Kids will start dying of measles.