The flatter the corporate hierarchy, the more likely it is that employees will communicate bad news and act upon it.

I didn't even complete my University Education

I would certainly use my voice to try and avoid anything that undermines confidence, so that parents are using vaccines fully.

My mom was on the United Way group that decides how to allocate the money and looks at all the different charities and makes the very hard decisions about where that pool of funds is going to go.

It is hard to sell Congress and the American people on foreign aid. Is it harder to do that than it is to sell billionaires on the idea that they should give all their money away.

President [George] Bush made the U.S. absolutely the leader, between its own PEPFAR, and it's been by far the biggest Global Fund donor. That's a legacy.

As for drugs - well, Gates was certainly not unusual there. Marijuana was the pharmaceutical of choice.