His insistence upon delegating authority down the line of command tended to bring out the best in subordinates. He kept his mind clear of details in order to focus on the big picture; he refused to consider minor issues because he was storing up his mental energy for the major ones. His daily 5-mile deck hikes kept him healthy and fit. The physical exercise helped him sleep soundly at night, even while under the strain of prolonged operations in enemy waters. As others in the fleet grew exhausted and edgy, Spruance remained fresh and well rested. He told his wife in a letter from sea, “If I
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