While standing on top of Everest, I looked across the valley, towards the other great peak, Makalu, and mentally worked out a route about how it could be climbed… it showed me that, even though I was standing on top of the world, it wasn't the end of everything for me, by any means. I was still looking beyond to other interesting challenges.

Foreword to Peak Performance : Business Lessons from the World's Top Sports Organizations (2000) by Clive Gibson, Mike Pratt, Kevin Roberts and Ed Weymes.