We may not always agree with every one of our neighbors. That's life. And it's part of living in such a diverse and dense city. But we also recognize that part of being a New Yorker is living with your neighbors in mutual respect and tolerance. It was exactly that spirit of openness and acceptance that was attacked on 9/11, 2001.

Well, we have to provide the world's best schools. We certainly don't have them, but that's our objective.

Nobody wants a job where they don't have authority to go along with the responsibility. Quite the contrary. The more authority you give people, the better people you can attract, and the harder they're going to work, and the more loyal they are going to be.

Despite its potential, the federal government has restricted funding for creating new cell lines - putting the burden of any future research squarely on the shoulders of the private sector. Government's most basic responsibility, however, is the health and welfare of its people, so it has a duty to encourage appropriate scientific investigations that could possibly save the lives of millions.

Most gun dealers follow the law and run honest businesses. But the statistics show that 1 percent of dealers sell more than half of all illegal guns. Why isn't the federal government going after them? Here's one reason: unlike mayors, members of Congress don't get a phone call in the middle of the night when a cop is shot and killed. They don't deliver the eulogies.

And if I were the president, I'd go out there and I'd emphasize the things I have done, and I'd say, 'Some things haven't worked, and I'm sorry about that, but I keep trying.' And I'm - and I think the president is a very viable candidate, and you're going to have a real horse race here no matter who the Republican nominee is.

The fact is, the most painful and tragic lesson of the 20th century was that regimes based on racial superiority and religious hatred can't be trusted to keep their word to the international community.