[On being "genial, soft-spoken and unflappable" despite having "hard arguments"]: As far as my being friendly to most of my opponents, it comes from the fact that none of this is personal. I don't take any of this personal. I don't take any criticism of my ideas personal, and as far as I'm concerned, everything I believe is on the table and fit to be challenged. There's nothing I'm holding back, there's nothing that I'm holding sacred, such that if you were to doubt it, I would take your doubt personal, or I would see it as something that would diminish me personally.