As you get to the end of the project you want to run all the tests cases against one version and make sure that you know that that version passed everything. And so as you get late in the project you get a little more conservative about making radical changes to the software.

Don't wallow in failure. Instead, learn from it.

It's easier for our software to compete with Linux when there's piracy than when there's not.

Every new change forces all the companies in an industry to adapt their strategies to that change.

Digital technology has several features that can make it much easier for teachers to pay special attention to all their students.

Capitalism has shortfalls. It doesn't necessarily take care of the poor, and it underfunds innovation, so we have to offset that.

Even when things are stable, that's not easy [to work in Africa] because there are not roads, and the weather is tough, the education system hasn't been there. But this is how you get great countries, is step by step.