The all-volunteer army works. It works particularly when we pay our troops well.

It really gets me when the critics say I haven't done enough for the economy. I mean, look what I've done for the book publishing industry. You've heard some of the titles. 'Big Lies,' 'The Lies of George W. Bush,' 'The Lies and the Lying Liars Who Tell Them.' I'd like to tell you I've read each of these books, but that'd be a lie.

I am a person who recognizes the fallacy of humans.

If there is a leak out of my administration, I want to know who it is. If the person has violated law, the person will be taken care of.

With a new national commitment, our scientists and engineers will overcome obstacles to taking these [hydrogen fuel cell] cars from laboratory to showroom, so that the first car driven by a child born today could be powered by hydrogen, and pollution-free.

We spend less time with each other now than we did during the presidency. When you're president, you're usually out and back in the same day - at least I was. I just came from a trip to the Middle East last week, where I was gone for five nights, and when I left, Laura [Bush] was out of town.

I believe the most solemn duty of the American president is to protect the American people. If America shows uncertainty and weakness in this decade, the world will drift toward tragedy. This will not happen on my watch.