Firing employees, that's unfortunately part of doing business.

The Western alliance should have supported the Sunni opposition against the Assad regime from the beginning. As far as Iraq is concerned, if it had stayed stable the way it was in 2008, IS would not have been able to expand in Iraq the way they did. The mistake was that Barack Obama withdrew the armed forces from Iraq too fast.

I certainly think it's important to speak up and say how unacceptable Donald Trump is. I'm always more than willing to do that.

Putin is behaving in a very dangerous way. And Donald Trump sounds as though he would simply sit back and allow that to go on. I worry about where that would end up.

Every math curriculum in the world is based on the idea of hand-calculating, and most of what you're teaching is how to calculate. And I think the resistance to this is very variable.

I've met quite a few dictators up close and personal in my life.

Jobs are a priority for every country. Doing more to improve regulation and help entrepreneurs is the key to creating jobs - and more growth.