Quitting law school was the most difficult decision of my life. But I felt this great relief that this is my life and I can do what I want with it.

When Hillary Clinton talks about adding more restrictions and complexity to our financial system, as she did in her economic policy speech, it shows how clueless she is about how the economy actually works.

Make the choice to do something because it engages your heart as well as your mind. Make the choice because it engages all of you.

You know, I believe that technology is the great leveler. Technology permits anybody to play. And in some ways, I think technology - it's not only a great tool for democratization, but it's a great tool for eliminating prejudice and advancing meritocracies.

I think what's fascinating is how many people are playing in politics who maybe haven't played before.

I know Vladimir Putin. He respects strength. He lied to our president's [Barack Obama] face; didn't both to tell him about warplanes and troops going into Syria. We need to speak to him from a position of strength.

When we miss with all the metadata collection we've had, the San Bernardino couple and the Tsarnaev brothers, what that suggests to me is that we are using the wrong algorithms to search through all this data.