My goal is to maintain the international norm on banning chemical weapons. I want that enforcement to be real. I want it to be serious. I want people to understand that gassing innocent people, delivering chemical weapons against children is not something we do. It's prohibited in active wars between countries. We certainly don't do it against kids. And we've got to stand up for that principle.

I think that Canada is one of the most impressive countries in the world, the way it has managed a diverse population, a migrant economy. The natural beauty of Canada is extraordinary. Obviously there is enormous kinship between the United States and Canada, and the ties that bind our two countries together are things that are very important to us.

The other reason might be that you want to talk to voters when you've got seven primaries in seven days. Understand what's happened in this race - where we campaign actively in a state, and voters have the chance to see me directly, they check under the hood, and they kick the tires, when we don't have as much time.

Iran . . . has failed to take the opportunity to demonstrate that its nuclear program is peaceful . . . time is not unlimited.

We ask for nothing more than the chance to blaze our own trail, and yet each of us is only here because somebody, somewhere, helped us find our path. That`s part of what makes America exceptional. We are family and we`ll do anything to help each other along the way.

How do we transform mere power into justice, mere sentiment into love?

What I'm interested in doing after I get out of the presidency is to make sure that I'm working with that next generation so that they understand you can't just rely on inspiration.