TryingtoRenewKnowledgeToday’ssocietyisofknowledgeeconomyage,inwhichnewknowledgeemergesmuchfasterthaneverbefore.Moreover,knowledgeplaysanimportantpartinthewholeeconomy.Therefore,everyonefindsitnecessarytorenewhis(orher)knowledge,otherwisehe(orher)willbeleftbehindthesociety.Therearesomewaystoupdateknowledge.Ontheonehand,onecanattenddifferentcoursesatalltypesofschools,eitherpart-timeorfull-time.Ontheotherhand,self-studyis,inasense,amoreconvenientandpracticalmethodbywhichonecaneffectivelyrenewhis(orher)knowledge.Inmyview,Ihaveprimarilydependedonself-taughtmethodintherecentyears.AlthoughIambusydoingdailywork,Istillinsistonteachingmyselfatnight.Inthisway,Icannotonlykeepupwiththeswiftdevelopmentofsocietybutalsoapplynewknowledgetomypracticalwork,whichbenefits.