“Does any skeptic suppose that a true mountaineer regrets any heroic mountain exploit because of some mishap…does he suppose that any of the many zealous navigators who sailed in that vain quest, the discovery of the mild open sea about the North Pole, bewailed the suffering he endured or the brave efforts he made? Does he imagine that man will ever cease his attempts…to reach the summit of unconquered peaks, simply because of possible mishaps and sufferings attendant thereon?”