AStoryAStoryOnceintheancientKingdomofZhengtherewasamanwhowantedtobuyhimselfapairofshoes.Hetookthemeasurementofhisownfeetwithapieceofstring.Thenhewenttothemarket.Hewaslookingatsomeshoesattheshoe-maker`swhenherealizedhehadleftthemeasurementathome.Heputdowntheshoesandrushedhometofetchit.Bythetimehereturnedwiththemeasurementthemarkethadbeenclosed.Sohefailedtogethisshoes.Somebodyaskedhim,“Whydidn`tyoujusttrytheshoesonyourfeet?”Heanswered,“Iwouldrathertrustthemeasurementthanmyfeet.”