Tim Cahill

I have no problem with the adventure travel movement. It makes better, more sensitive people. If you get people diving on a coral reef, they're going to become more respectful of the outdoors and more concerned with the threats that places like that face and they're going to care more about protecting them than they would have before.

From 1961 to 1964, I was fortunate enough to work at a think tank in the Kenwood neighborhood of Chicago. As a writer and editor, I reported in a publication about the thinkers. Our offices were in a former mansion; I worked in what had been the ballroom. As I sat typing my copy, I imagined the dancers waltzing.

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.