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  • If you learn indoor techniques, you will think narrowly and forget the true Way. Thus you will have difficulty in actual encounters.

    Miyamoto Musashi, Yamamoto Tsunetomo, Inazo Nitobe (2010). “Honor: Samurai Philosophy of Life - The Essential Samurai Collection; The Book of Five Rings, Hagakure: The Way of the Samurai, Bushido: The Soul of Japan.”, p.14, Bottom of the Hill