Harnessing steam power required many innovations, as William Rosen chronicles in the book 'The Most Powerful Idea in the World.'

Whenever you have war, you often have more deaths because the medical system and the food system breaks down, than you have directly through violence.

Only a few businesses will succeed by having the lowest price, so most will need a strategy that includes customer services.

When a country has the skill and self-confidence to take action against its biggest problems, it makes outsiders eager to be a part of it.

Investing for the poor requires participation from the entire community.

Only through focus can you do world-class things, no matter how capable you are.

I think there certainly was a milestone in the '90s with regards to the Internet achieving critical mass. There were several magical factors that came together: the creation of HTML by Tim Berners-Lee, the drop in the price of communications, and all the PCs out there that you could put this software into.