Life is too short to spend your time avoiding failure.

Fighting climate change isn't just an obligation we owe to future generations. It's also an opportunity to improve public health - and drive economic growth - in the here and now.

Central planning didn't work for Stalin or Mao, and it won't work for an entrepreneur either.

Ironically, it is exactly because we are a city that embraces freedom, that welcomes everyone and encourages their dreams, that New York remains on the front lines in the war on terror.

The World Trade Center site will forever hold a special place in our city, in our hearts. But we would be untrue to the best part of ourselves and who we are as New Yorkers and Americans if we said no to a mosque in lower Manhattan.

Nobody's going to go home for a year and come back. Nobody could ever enforce that. Nobody in their right mind would ever try to do it.

The press really is not doing its job of holding their [the candidates'] feet to the fire. ... The tough questions are not what are you in favor of, but how are you going to get it through Congress?