Though he was virtually fearless in the physical sense, he suffered an almost pathological dread of losing control of the situation. In part, this attitude grew out of a consuming sense of responsibility. He felt he had gotten them into their situation, and it was his responsibility to get them out. As a consequence, he was intensely watchful for potential troublemakers who might nibble away at the unity of the group. Shackleton felt that if dissension arose, the party as a whole might not put forth that added ounce of energy which could mean, at a time of crisis, the difference between
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