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The aging Yamamoto Tsunetomo's interpretation of bushidō is perhaps more illustrative of the philosophy refined by his unique station and experience, at once dutiful and defiant, ultimately incompatible with the laws of an emerging civil society. Of the 47 rōnin—to this day, generally regarded as exemplars of bushidō—Tsunetomo felt they were remiss in hatching such a wily, delayed plot for revenge, and had been over-concerned with the success of their undertaking. Instead, Tsunetomo felt true samurai should act without hesitation to fulfill their duties, without regard for success or failure.^{[citation needed]}

This romantic sentiment is of course expressed by warriors throughout history, though it may run counter to the art of war itself. This ambivalence is found in the heart of bushidō, and perhaps all such "warrior codes". Some combination of traditional bushidō's organic contradictions and more "universal" or "progressive" formulations (like those of Yamaga Sokō) would inform Japan's disastrous military ambitions in the 20th century