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.
Bill GatesHow we deal with the AIDS epidemic should be one of the greatest ways that the world gets measured. The report card for this era.
Bill Gates