The Use of Spies 723
Sun Tzǔ said: Raising a host of a hundred thousand men and marching them great distances entails heavy loss on the people and a drain on the resources of the State. The daily expenditure will amount to a thousand ounces of silver. 724 There will be commotion at home and abroad, and men will drop down exhausted on the highways. 725 As many as seven hundred thousand families will be impeded in their labour. 726