27. Hence it is only the enlightened ruler and the wise general who

will use the highest intelligence of the army for purposes of spying and thereby they achieve great results. [Tu Mu closes with a note of warning: "Just as water, which carries a boat from bank to bank, may also be the means of sinking it, so reliance on spies, while production of great results, is oft-times the cause of utter destruction."] Spies are a most important element in war, because on them depends an army’s ability to move. [Chia Lin says that an army without spies is like a man without ears or eyes.] [1] "Aids to Scouting," p. 2. [2] "Marshal Turenne," p. 311. *** END OF THE PROJECT GUTENBERG EBOOK THE ART OF WAR *** Updated editions will replace the previous one—the old editions will be renamed. Creating the works from print editions not protected by U.S. copyright law means that no one owns a United States copyright in these works, so the Foundation (and you!) can copy and distribute it in the United States without permission and without paying copyright royalties. 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