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.

Without question, students need to practice, review, and drill skills, but they should do so only in the spirit of working toward more complex mastery of those skills. Redundant drill of skills is inherently boring and insulting to the learner, and it is one of the most effective methods for turning students off to learning.

I've always loved teaching and reading and talking to people, and my grandfather was a professor.

Education has failed in a very serious way to convey the most important lesson science can teach: skepticism.

My father's side of the family was very active in education.