America is addicted to oil...We must also change how we power our automobiles. We will increase our research in better batteries for hybrid and electric cars and in pollution-free cars that run on hydrogen. We will also fund additional research in cutting-edge methods of producing ethanol, not just from corn but from wood chips and stalks or switch grass.

There is a difference between responsible criticism that aims for success and defeatism that refuses to acknowledge anything but failure. Hindsight alone is not wisdom, and second-guessing is not a strategy.

There's an old saying in Tennessee — I know it's in Texas, probably in Tennessee — that says, fool me once, shame on — shame on you. Fool me — you can't get fooled again.

America has never been an empire. We may be the only great power in history that had the chance, and refused - preferring greatness to power and justice to glory.

America was targeted for attack because we're the brightest beacon for freedom and opportunity in the world, and no one will keep that light from shining.

After the chaos and carnage of September 11th, it is not enough to serve our enemies with legal papers.

I understand how democracy works. Quite a little bit of criticism in it, which is fine. That's fine. That's part of the process. But I have every right, as do my administration, to make it clear what the consequences would be of policy. And if we think somebody is strong or doesn't see the world the way it is, we'll continue to point that out to people.