《水经注·卷三十三》
八阵图所表示的都是用兵虚虚实实，随机应变的战术，后世对兵法有高深研究的人也看不懂。
皆图兵势行藏之权，自后深识者所不能了。
The Eight Formations plan shows how to use tactics in battle, from false to real and flexible. Later generations, even those with deep knowledge of military strategy, could not understand the mound.
<s>[INST] Convert the following English text into Classical Chinese: The Eight Formations plan shows how to use tactics in battle, from false to real and flexible. Later generations, even those with deep knowledge of military strategy, could not understand the mound. [/INST] 皆图兵势行藏之权，自后深识者所不能了。</s>
Convert the following English text into Classical Chinese: The Eight Formations plan shows how to use tactics in battle, from false to real and flexible. Later generations, even those with deep knowledge of military strategy, could not understand the mound.
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皆图兵势行藏之权，自后深识者所不能了。
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