After every few steps, we huddle over our ice axes mouths agape, struggling for sufficient breath to keep our muscles going.... at a height of 8800 metres, we can no longer keep on our feet while we rest. We crumple to our knees, clutching our axes.... Every ten or fifteen steps we collapse into the snow to rest, then crawl on again.

...seen from above, landscapes are made up of mountains and watercourses. Just as a transparent model of the human body consists of a framework of bone and a network of arteries, the earth's crust is structured in mountain ridges, river, creeks, and gullies.

The wonderful things in life are the things you do, not the things you have.