Learning from mistakes and constantly improving products is a key in all successful companies.

The market does not drive the scientists, the communicators, the thinkers, the government to do the right things.

The phenomenal generosity of the United States in its aid budget towards health issues is the best in the world. You can look at that broadly, you can look at it in terms of HIV, the PEPFAR money which came together in a Republican administration with bipartisan support.

I don't think there's a... boundary between digital media and print media. Every magazine is doing an online version.

To be a good professional engineer, always start to study late for exams because it teaches you how to manage time and tackle emergencies.

But the improvements will happen faster and last longer if we can channel market forces, including innovation that's tailored to the needs of the poorest, to complement what governments and nonprofits do. We need a system that draws in innovators and businesses in a far better way than we do today.

I think when smallpox was eliminated, the whole world got pretty excited about that because it’s just such a dramatic success.