" Such experiences are all too rare,” he continued, “and they but too soon become blurred in the actualities of daily intercourse and practical existence. Yet it is these few fleeting moments, which are reality. In these only we see real life. The rest is ephemeral, the unsubstantial. And that single hour on leaving Lhasa was worth all the rest of my lifetime. "

― Wade Davis , Into the Silence: The Great War, Mallory and the Conquest of Everest