When you're dealing with a very sick person and you're doing something to them, an intervention, be it a procedure or a medication, safety is critical.

You can have an epidemic in a state. You can have it in a region. You can have it in a country where the critical level of disease passes a certain threshold, and we call that an 'epidemic threshold.'

It is now widely recognized that any attempt at malaria eradication must be a long-term commitment that involves multiple interventions, disciplines, strategies and organizations.

The world is a place that is so interconnected that what happens in another part of the world will impact us.

Marrying Martin and the movement perfected my journey of discovery, soothed my yearning to pour out the values and vision within my soul.

Life is strong and fragile. It's a paradox... It's both things, like quantum physics: It's a particle and a wave at the same time. It all exists all together.

I told my father I had to try political science for a year. He thought I was throwing my life away.

The number of e-mails and letters that I get from choreographers, from sculptors, from composers who are being inspired by science is huge.