Is the rich world aware of how four billion of the six billion live? If we were aware, we would want to help out, we'd want to get involved.

If people want capital gains taxed more like the highest rate on income, that's a good discussion. Maybe that's the way to help close the deficit.

Philanthropy, although it's tiny compared to the government, it's 2% of the US economy, which is the largest percentage, other than the Middle East.

Success today requires the agility and drive to constantly rethink, reinvigorate, react, and reinvent.

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

We're all responsible for creating a polio-free world while we still can.

The mainstream is always under attack.