There are some who question the scale of our ambitions, who suggest that our system cannot tolerate too many big plans. Their memories are short, for they have forgotten what this country has already done, what free men and women can achieve when imagination is joined to common purpose, and necessity to courage.

If John McCain wants to have a debate about who has the temperament, and judgment, to serve as the next Commander-in-Chief, that's a debate I'm ready to have.

Our tears are not enough. Our words and our prayers are not enough. If we really want to honor these twelve men and women, if we really want to be a country where we can go to work and go to school and walk our streets free from senseless violence, without so many lives being stolen by a bullet from a gun, then we're gonna have to change. We're gonna have to change.

All the good things that are happening in America don't get reported on a lot.

In the wake of 9/11, my meetings with Arab and Pakistani Americans, for example, have a more urgent quality, for the stories of detentions and FBI questioning and hard stares from neighbors have shaken their sense of security and belonging. They have been reminded that the history of immigration in this country has a dark underbelly; they need specific reassurances that their citizenship really means something, that America has learned the right lessons from the Japanese internments during World War II, and that I will stand with them should the political winds shift in an ugly direction.

I wouldn't consider them acts of war, but I would consider them acts of property damage, commercial theft that are serious.

We will stand against violence and intimidation. We will stand for the rights and dignity of all human beings.