Know your numbers' is a fundamental precept of business.

Natural epidemics can be extremely large. Intentionally caused epidemics, bioterrorism, would be the largest of all.

Money has always been in politics. And I'm not sure you'd want money to be completely out of politics.

Windows 8 is key to the future, the Surface computer.

Software is different than other products um, partly because it's, it's not physical and, and partly because of its complexity. You can express in software millions of different cases and making sure that you handle all of them correctly is extremely difficult.

According to Ethiopian custom, parents wait to name a baby because children often die in the first weeks of life.

When I was in my 40s, Microsoft was my primary activity.