Millions of Americans have contributed to building a stronger Israel; I've been proud to be one of them. Last year, I went to Jerusalem to help dedicate in my father's name a new MDA medical facility which treats people of all faiths and all nationalities absolutely equally.

I'd be derelict in my duty if I didn't go and continue to use every advantage that I can to promote New York's cause.

I like the theater, dining and chasing women. Let me put it this way: I am a single, straight billionaire in Manhattan. It's like a wet dream.

It's no fun to protest on an empty stomach.

Fifty percent of the world's population lives in cities. In a couple of decades, 70 percent of the world's population will be living in cities. Cities are where the problem is. Cities are where the solution is, where creativity exists to address the challenges and where they have most impact. This is why, in 2005, the C40 was founded, an organization of cities that address climate change. It started with 18 cities; now it's 91. Cities simply are the key to saving the planet.

The governor of Texas was a real climate change, well, "skeptic" would be a nice way of phrasing it. Still, though, Texas is a leader in renewables. So, what I care about is what politicians are actually doing, not what they are saying.

What has changed is that people have stopped working together.