6. Weak Points and Strong
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Do not repeat the tactics which have gained you one victory, but let your methods be regulated by the infinite variety of circumstances. #
As Wang Hsi sagely remarks: "There is but one root principle underlying victory, but the tactics which lead up to it are infinite in number." With this compare Col. Henderson: "The rules of strategy are few and simple. They may be learned in a week. They may be taught by familiar illustrations or a dozen diagrams. But such knowledge will no more teach a man to lead an army like Napoleon than a knowledge of grammar will teach him to write like Gibbon."