The trick generally is to break programs into pieces and have those pieces be individually testable and so then when you move on to the other pieces you treat it as a black box knowing that it either works or doesn't work.

We believe the world changes when the boldest thinking is directed at the toughest problems

Microsoft is always two years away from failure.

There is this thing called the GPL (Gnu Public Licence), which we disagree with... nobody can ever improve the software.

I have a nice office. I have a nice house... So I'm not denying myself some great things. I just don't happen to have expensive hobbies.

We flew down weekly to meet with IBM, but they thought the way to measure software was the amount of code we wrote, when really the better the software, the fewer lines of code.

The most amazing philanthropists are people who are actually making a significant sacrifice.