I'm a strong believer that you have to have an equal opportunity to fail and to try things that are hard. I always tell my students, "Don't just take things that are easy for you. If you're really good at math, don't take just math. Take classes that make you write. If you're a really great writer, but bad at math, take math and make yourself work your way through it."

I think our dependence on foreign oil is a real problem, potential Achilles heel, and we have to do something about it.

What we will not wait for is that particular nexus of terrorism, weapons of mass destruction that is extremism, and the technology to come together in a way that is harmful to the United States.

Tocqueville talked about "ceaseless agitation," citizens constantly use their institutions, constantly challenging them, constantly insisting upon their rights. It's also individuals taking responsibility for other individuals, recognition that no democracy works if they're weaklings.

The United States has no credible evidence that Iraq moved weapons of mass destruction into Syria early last year before the U.S.-led war that drove Saddam Hussein from power.

I studied piano from the age of three. My grandmother taught piano. I stayed at her house during the day while my parents worked. I obviously wanted to learn to play. And so she asked if she could teach me, and my mother said don't you think she's too young. My grandmother apparently said no. So I could read music before I could read, and I really don't remember learning to read music. So for me it's like a native language. When I look at a sheet of music, it just makes sense.

I'm saying there is no way that I will do this, because it's really not me. I know my strengths, and governor Romney needs to find someone who wants to run with him. There are many people who will do it very, very well, and I'll support the ticket.