Some will remember an image of a fire or story or rescue. Some will carry memories of a face and a voice gone forever. And I will carry this. It is the police shield of a man named George Howard who died at the World Trade Center trying to save others. It was given to me by his mom, Arlene, as a proud memorial to her son. It is my reminder of lives that ended and a task that does not end.

In Africa, you only have an independent media in only eight African countries, so there is very little transparency. The best gift that rich countries can give Africa is Radio Free Africa and Radio Free Africa will do for Africa what Radio Free Europe did for Europe.

We know the surface temperature of the Earth is warming. It has risen by .6 degrees Celsius over the past 100 years. There was a warming trend from the 1890s to the 1940s, cooling from the 1940s to the 1970s, and then sharply rising temperatures from the 1970s to today.

This is my maiden voyage. My first speech since I was the president of the United States and I couldn't think of a better place to give it than Calgary, Canada.

Remember the Three Princes of Serendip who went out looking for treasure? They didn't find what they were looking for, but they kept finding things just as valuable. That's serendipity, and our business [drugs] is full of it.

They said, "You know, this issue doesn't seem to resignate with the people." And I said, you know something? Whether it resignates or not doesn't matter to me, because I stand for doing what's the right thing, and what the right thing is hearing the voices of people who work.

I believe we owe it to our children and grandchildren to stay engaged and to help spread liberty and to help reformers.