Vaccines are a miracle; they're fantastic. Anything that makes people hesitate to give their children these vaccines according to the recommended schedule creates risk. Risk for the children who don't get vaccinated and risk for children, some of whom don't have an immune system, so they're benefiting from the fact that the community protection means the disease doesn't get to them.

I work hard because I love my work.

Don't let complexity stop you.

The most important thing was the creation of a... a standard, where hundreds of companies build hardware that can all run the same software.

Banking is necessary - banks are not.

The future of Windows is to let the computer see, listen and even learn.

What I do best is share my enthusiasm.