"You have a lot of ups and downs in coaching, especially, but I can't remember any bad times at this point. I mean, they're all good. A lot of tears when you lose, a lot of down times, but I can't remember any of them. They're all positive now. Even the bad times were good."

"Among all forms of mistake, prophecy is the most gratuitous."

"The United States is the most innovative country in the world. But our leadership could slip away if we fail to properly fund primary, secondary and higher education."

"The worst mistake of first contact, made throughout history by individuals on both sides of every new encounter, has been the unfortunate habit of making assumptions. It often proved fatal."