Surviving extreme conditions can teach us to lead a fulfilled life. No one knows this better than Erling Kagge, who was the first man in history to reach all of the Earth's poles by foot - the North, the South, and the summit of Everest. In 'Philosophy for Polar Explorers' he brings together the wisdom and expertise he has gained from the expeditions that have taken him to the limits of the Earth, and of human endurance.