To the Class of 1901, United States Naval Academy. - Ernest King

Any man facing a major decision acts, consciously or otherwise, upon the training and beliefs of a lifetime. This is no less true of a military commander than of a surgeon who, while operating, suddenly encounters an unsuspected complication. In both instances, the men must act immediately, with little time for reflection, and if they are successful in dealing with the unexpected it is upon the basis of past experience and training. As any decisions that I made during World War II sprang from the forty-four years' service that were behind me in 1941, I wish to acquaint the reader with the background of my professional life so that he may better understand their origins.

I don't care how good they are. Unless they get a kick in the ass every six weeks, they'll slack off.

Calculating risks does not mean taking a gamble. It is more than figuring the odds. It is not reducible to a formula. It is the analysis of all factors which collectively indicate whether or not the consequences to ourselves will be more than compensated for by the damage to the enemy or interference with his plans. Correct calculation of risks, by orderly reasoning, is the responsibility of every naval officer who participates in combat, and many who do not.