Immigrants to America help us with the work they do. They challenge us with new ideas, and they give us perspective. This is still the nation that more people around the world want to come to than any place else. That has to tell us something about ourselves. If around the world this is the place people want to come to so much, maybe there's more here than many of us realize-and that many of us can take advantage of.

I asked Secretary [Robert] Gates, what did they get in return for giving up the nuclear shield of Poland and the Czech Republic? And you know what his answer was? Nada. They got nothing.

While I was the mayor abortions in New York went down and adoptions went way up, because we worked on adoptions as an alternative, so that there'd be a real choice.

We can't accommodate terrorism. When someone uses the slaughter of innocent people to advance a so-called political cause, at that point the political cause becomes immoral and unjust and they should be eliminated from any serious discussion, any serious debate.

Obviously murder and graffiti are two vastly different crimes. But they are part of the same continuum, and a climate that tolerates one is more likely to tolerate the other.

Now [after election] where it goes into violence, I have a zero tolerance for riots.

People have a right to protest; they have a right to make their opinion. They can be very upset about what they consider to be a murder of a person in custody, but you cannot destroy property. First person does it goes to jail.