Causality is the fabric of the universe, and probability is its language.

I think the best role models for women are people who are fruitfully and confidently themselves, who bring light into the world.

There is no such thing as society: there are individual men and women, and there are families.

The sun is our most powerful tool in Africa. We must learn to work with it, not against it.

Your brain is like a muscle; the more you use it, the stronger it gets.