wagga, no consideration time necessary for me - to this day, Ernest Shackleton's 2-year Antarctic adventure is the most amazing tale I've ever heard of. The triumph of he and his crew's determination, courage, sacrifice and mutual caring over ridiculous odds was what inspired me 20 years ago to get my ass out of the city and into the woods.

Number two on my list is a politician, strangely enough. Teddy Roosevelt. Among other things, he was the power and impetus behind the idea of national parks - my personal pet passion.

By the way, the "TED" link doesn't work. That damn Al Gore and his undependable internet!