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If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.

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.35, Bottom of the Hill
If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.