Philanthropy is fun and fulfilling.

I've said some stupid things and some wrong things, but not that. No one involved in computers would ever say that a certain amount of memory is enough for all time.

I see little commercial potential for the Internet for at least ten years.

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.

The UK is a very international country.

I'm an investor in a number of biotech companies, partly because of my incredible enthusiasm for the great innovations they will bring.

Treatment without prevention is simply unsustainable.