Most people won't have opportunity to do full-time service, but those lucky enough to have monetary wealth or some spare time really can make an enormous difference. As someone who's now in the public sector, and is seeing up-close-and-personal the real impact of what we do and what we give, I can tell you: every dollar and every volunteer help, in more ways than you can count.

When it comes to public school education, we have been unwilling to measure our results. We've been unwilling to pay based on performance. We have tenure where, even if you can't teach, you can't get fired. We've been unwilling to invest in new schools.

I'm worried about the world because of nuclear proliferation.

I've always respected those who tried to change the world for the better, rather than just complain about it.

Look at all of the great strengths of America: entrepreneurialship, work ethic, natural resources, a democracy, a transparency, a willingness to be critical. Around the world, they look at us, and they say, "Why are you criticizing yourself? Why are you people arguing during the political process to elect a president or somebody else?" That's the great strength of this country.

I'm not going to talk about supporting somebody for a long time. I don't know who the two party candidates are going to be.

You're entitled to your own opinions, but not your own facts.