Liya Kebede

The most inspiring piece of advice I've gotten is simply to persevere. My mom taught me to always keep going no matter what from an early age. When it feels too difficult to push forward, I always remind myself, 'This too shall pass,' and then I redouble my efforts.

When I have a creative insight, there is a high. I think back in the day, I made music as much as I did because it made me feel so good. I think you could argue that there is a creative addiction - but, you know, the healthy kind.

In 1967, the world health community launched a global effort to eradicate smallpox. It took a coordinated, worldwide effort, required the commitment of every government, and cost $130 million dollars. By 1977, smallpox had disappeared.