When I was growing up, I wanted passionately to be a physicist.

If you're a white male growing up in this society, you're constantly receiving encouragement to go on in science in the form of all the images that you're receiving.

The world is a complex place.

When you have different kinds of scientific and mathematical minds approaching problems, you will get more solutions. This leads to more innovation and more creative design.

My experience in Ethiopia helped shape my vision for WHO. We need to promote evidence-based decision-making and awareness. Specifically, we need to advocate for research and development, champion and support global and regional coalitions, and strengthen national capacity.

I was a science fiction geek from an early age, enthralled by the questions of life in the universe. As I got older, I learned that space exploration was real. I wanted to get involved in that. I knew I wanted to be a scientist.

Scientific facts are often described in textbooks as if they just sort of exist, like nickels someone picked up on the street. But science at the cutting edge, conducted by sharp minds probing deep into nature, is not about self-evident facts. It is about mystery and not knowing. It is about taking huge risks.

As I have tried to show, science, in producing the airplane and the wireless, has created a new international political environment to which governments must adjust their foreign policies.