[Tu Yu says: "through conversion of the enemy's spies we learn the ene… — The Art of War
SAPIR 861
[Tu Yu says: "through conversion of the enemy's spies we learn the enemy's condition." And Chang Yu says: "We must tempt the converted spy into our service, because it is he that knows which of the local inhabitants are greedy of gain, and which of the officials are open to corruption."]
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