The Art of War by active 6th century B.C. Sunzi

7. With his forces intact he will dispute the mastery of the Empire,

and thus, without losing a man, his triumph will be complete. [Owing to the double meanings in the Chinese text, the latter part of the sentence is susceptible of quite a different meaning: "And thus, the weapon not being blunted by use, its keenness remains perfect."] This is the method of attacking by stratagem.