I watched the piles of feces go up the conveyor belt... They made their way through the machine... A few minutes later I took a long taste of the end result: a glass of delicious drinking water.

The best teacher is very interactive.

Technology must be implemented as part of a thoughtful, holistic approach to education transformation that includes teacher training, relevant curricula, parental involvement, and programs for children that fill unmet needs for basics like nutrition and health care.

The way to be successful in the software world is to come up with breakthrough software, and so whether it's Microsoft Office or Windows, its pushing that forward. New ideas, surprising the marketplace, so good engineering and good business are one in the same.

It's pretty amazing to go from a world where computers were unheard of and very complex to where they're a tool of everyday life.

I think any statement about stock prices is always suspect unless it's made by Warren Buffett.

The world won't care about your self-esteem. The world will expect you to accomplish something BEFORE you feel good about yourself.