The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time and still retain the ability to function. That's what you have to do: you have to be confident in your potential and aware of your inexperience.

I spent three years working at the White House and wanted to do something that wasn't about passing bills and resolutions.

I'll always cringe remembering those little embarrassing moments when I said something dumb on a conference call, when my inexperience poked through, when I should have been more solicitous of the judgment of those around me. They're a reminder that it's not mutually exclusive to be confident and humble, to be skeptical and eager to learn.

There is that definition of leadership that says, 'Leadership is convincing people to do things that they otherwise wouldn't have done because you've made them believe it's the right thing to do.' And a great speech can do that.