Designisclosetopeople'slives,itisabetterserviceforpeoplewithabetterlife.Everyonewantstobeacreativedesigner,agooddesigncanspreadforever.Peoplewanttobecomefamousandrichthroughdesignningagoodproduct,butthepreconditiontodesignagoodproductishavingsufficient
theoreticalknowledge.Theoreticalknowledgeisanimportantstepofpractice.Itishardtodesignagoodproductifthereisnogoodtheoryasabasis.