"Perseverance is the singular quality that Everest summiteers and the business elite have in common. We don't believe that perseverance is an intrinsic quality possessed by the fortunate few. On the contrary, we're convinced that anyone can accomplish great feats if they summon the will required to overcome seemingly insurmountable obstacles. Successful individuals know how to motivate themselves to achieve peak performance. They know what internal levers to pull when their engines of determination start to flag."