Under the circumstances, “a sense of humor and a great faith, or else a complete lack of imagination, are essential to sanity. - Stephen E. Ambrose

Of courage undaunted, possessing a firmness and perseverance of purpose which nothing but impossibilities could divert from its direction, careful as a father of those committed to his charge, yet steady in the maintenance of order and discipline, intimate with the Indian character, customs, and principles; habituated to the hunting life, guarded by exact observation of the vegetables and animals of his own country against losing time in the description of objects already possessed; honest, disinterested, liberal, of sound understanding, and a fidelity to truth so scrupulous that whatever he should report would be as certain as if seen by ourselves – with all these qualifications as if selected and implanted by nature in one body for this express purpose, I could have no hesitation in confiding the enterprise to him. To fill up the measure desired, he wanted nothing but a greater familiarity with the technical language of the natural sciences, and readiness in the astronomical observations necessary for the geography of his route. To acquire these he repaired immediately to Philadelphia, and placed himself under the tutorage of the distinguished professors of that place.

The result of these shared experiences was a closeness unknown to all outsiders. Comrades are closer than friends, closer than brothers. Their relationship is different from that of lovers. Their trust in, and knowledge of, each other is total. They got to know each other's life stories, what they did before they came into the Army, where and why they volunteered, what they liked to eat and drink, what their capabilities were. On a night march they would hear a cough and know who it was; on a night maneuver they would see someone sneaking through the woods and know who it was from his silhouette.

Of the tens of thousands of men who died in combat in the war, possibly as many as half lost their lives in vain. Lee’s charges at Malvern Hill and Gettysburg, Burnside’s at Fredericksburg, Grant’s at Vicksburg, and many others left the dead strewn everywhere for no discernible military gain. The Sioux would never have followed men who led such bloody, futile assaults, but the Americans made heroes out of these generals — and the higher a general’s losses, it seemed, the greater the hero he became.