The malaria parasite has been killing children and sapping the strength of whole populations for tens of thousands of years. It is impossible to calculate the harm malaria has done to the world.

I know there's a farmer out there somewhere who never wants a PC and that's fine with me.

The world at large is less inequitable today than at any time in history. Number of people in abject poverty, as a percentage, is at all-time low.

Discrimination has a lot of layers that make it tough for minorities to get a leg up.

People often overestimate what will happen in the next two years and underestimate what will happen in ten.

Playing Bridge is a pretty old fashioned thing in a way that I really like... I do the dishes every night - other people volunteer but I like the way I do it.

Innovation is a good thing. The human condition - put aside bioterrorism and a few footnotes - is improving because of innovation.