There are terrible, terrible memories of September 11th, things that I saw, people that I lost, the devastation, the identification of bodies. I mean, all these memories come back to you at different times. And then the other side of it this tremendous response with the firefighters and the police officers saving people, the rescue workers.

I have eight times online since January [2016] in which Hillary Clinton has had massive coughing fits in which she couldn't complete her speech. I've seen her lifted onto airplanes. And I don't know what's wrong with her.

When people endure a traumatic event, they are either defeated or made stronger. On Sept. 11, I told New Yorkers, "I want you to emerge stronger from this." My words were partially a hope and partially an observation that people in New York City handle big things better than little things. I could not be more proud of the way my city responded.

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.

Disagrees with neocon adviser on immediate need to bomb Iran.

No magic formula can completely prepare us for crises in life. However, each choice we make now will impact how we handle those crises in the future. Make your choice count. Dedicate time each day to developing your character. If you do, courage will be there when you need it most.

A leader must not let critics set the agenda.