I believe innovation is the most powerful force for change in the world.

Don't let complexity stop you.

Creating a piece of software is always complicated because you're doing something new. If you just wanted something that had been done before you'd just use that old piece of software. So there are no repetitive tasks.

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.

I studied every thing but never topped.... But today the toppers of the best universities are my employees

The potential financial reward for building the 'next Windows' is so great that there will never be a shortage of new technologies seeking to challenge it.

AIDS we're - most of these diseases - we are down from the peak. We're down about 40 per cent from the peak and if we got the right vaccines, which are at the early stage of discovering, then the numbers would come down very dramatically. So that's why we talk about it as an emergency.