Like other conflict-affected regions, Africa continues to see religious, ethnic, and politically motivated conflicts. Extremist violence is now entrenched in several parts of the world. Armed conflicts are leading to protracted refugee crises to the scale that has not been seen since World War II.

Working together with our exceptional leadership team, our Ministry of Health was empowered to make smart investments that could unlock our potential by producing long-lasting health and economic benefits for all.

I believe UNAIDS' provocative leadership has been critical in addressing the AIDS epidemic and converting it from a death sentence to a chronic health condition.

Early in my career, I was galvanized by a disease that ravaged my country and many others around the world: malaria.

I think Kamala Harris would be a fantastic president. I've known her for many years. We've worked on a lot of issues together, including criminal justice reform and also specifically on bail reform. I think she is the leader we need who can unite the American people.

Now we teach our leaders that it's your job to put in the systems that enable your people to run your experiments fast and cheap and to keep making them faster and cheaper. Yield as many of your decisions off to the experiment as possible.

I have always had this view about the modern education system: we pay attention to brain development, but the development of warmheartedness we take for granted.

People ask me all the time what it is about Australia that produces so many big stars. Honestly, I believe it is a combination of things. Our education standards are quite high, but our industry is very limited. Yet we're very aware of the industry - everyone goes to the theater, sees TV shows.