90 percent of my time is spent on 10 percent of the world.

I happen to hold a bachelor of science degree in geology... And my greatest contribution to the field of science is that I never entered it.

We are not sure to what extent Saddam's [Hussein ] own people were conveying an incorrect picture to him. But this body of evidence was believed not only by President George W. Bush. President Bill Clinton used that same body of intelligence before bombing Iraq in 1998.

We all hoped in 2001 that we could put in place an Afghan government under President Karzai that would be able to control the country, make sure al-Qaeda didn't come back, and make sure the Taliban wasn't resurging. It didn't work out.

Just hit my 75th birthday, I'm feeling great!

My own experience is use the tools that are out there. Use the digital world. But never lose sight of the need to reach out and talk to other people who don't share your view. Listen to them and see if you can find a way to compromise.

Almost invariably, whoever doesn't win the argument is going to be unhappy.