We'll succeed unless we quit.

I believe the world would have been a lot worse off if Saddam [Hussein] were in power today.

I've got a great sense of where I want to lead and I'm comfortable with why I'm running. And, you know, the call on that speech was, beware. This is going to be a tough campaign.

Fool me once, shame on - shame on you. Fool me - you can't get fooled again.

Before history is written down in books, it is written in courage.

I've got a reason for running. I talk about a larger goal, which is to call upon the best of America. It's part of the renewal. It's reform and renewal. Part of the renewal is a set of high standards and to remind people that the greatness of America really does depend on neighbors helping neighbors and children finding mentors. I worry. I'm very worried about, you know, the kid who just wonders whether America is meant for him. I really worry about that.

I feel a sense of obligation to our troops and their families because of the decisions that I made. So I'm involved with veterans.