Getting ready for a global pandemic is every bit as important as nuclear deterrence and avoiding a climate catastrophe.

I have this very positive view of the world getting better and better. The list of things that could be huge setbacks is not very long: A nuclear war, climate change and epidemics.

I understand how every healthy child, every new road, puts a country on a better path, but instability and war will arise from time to time, and I'm not an expert on how you get out of those things.

I try to make time for reading each night. In addition to the usual newspapers and magazines, I make it a priority to read at least one newsweekly from cover to cover. If I were to read what intrigues me- say, the science and business sections - then I would finish the magazine the same person I was when I started. So I read it all.

You might say, well, aren't people saying that about wind and solar today? Not really. Only in the super-narrow sense that the capital costs per output, when the wind is blowing, is slightly lower.

The most meaningful way to differentiate your company from your competitors, the best way to put distance between you and the crowd is to do an outstanding job with information. How you gather, manage and use information will determine whether you win or lose.

People think about this idea that there's 122 million kids that are alive that would not be if that fatality rate had stayed at the 1990 level, that's 122 million families.