Nosatisfactorywayexiststoexplainhowtoformagoodidea.Youthinkaboutaproblemuntilyou'retiredforgetitmaybesleeponitandthenflash!Whenyouaren'tthinkingaboutitsuddenlytheanswerarrivesasagiftfromt

　　Nosatisfactorywayexiststoexplainhowtoformagoodidea.Youthinkaboutaproblemuntilyou'retiredforgetitmaybesleeponitandthenflash!Whenyouaren'tthinkingaboutitsuddenlytheanswerarrivesasagiftfromthegods.

　　Ofcourseallideasdon'toccurlikethatbutsomanydoparticularlythemostimportantones.Theyburstintothemindglowingwiththeheatofcreation.Howtheydoitisamysterybuttheymustcomefromsomewhere.Let'sassumetheycomefromthe"unconscious."Thisisreasonableforpsychologistsusethistermtodescribementalprocesseswhichareunknowntotheindividual.Creativethoughtdependsonwhatwasunknownbecomingknown.

　　Allofushaveexperiencedthissuddenarrivalofanewideabutitiseasiesttoexamineitinthegreatcreativepersonalitiesmanyofwhomexperienceditinanintensifiedformandhavewrittenitdownintheirlifestoriesandletters.Onecandrawexamplesfromgeniusinanyfieldfromreligionphilosophyandliteraturetoartandmusiceveninmathematicsscienceandtechnicalinventionalthoughtheseareoftenthoughttodependonlyonlogicandexperiment.Alltrulycreativeactivitiesdependinsomedegreeonthesesignalsfromtheunconsciousandthemorehighlyinsightfulthepersonisthesharperandmoredramaticthesignalsbecome.

　　AtypeofcreativeexperienceisillustratedbythedreamswhichcametoDescartesattheageoftwenty-threeanddeterminedhislifepath.Descarteshadunsuccessfullysearchedforcertaintyfirstintheworldofbooksandthenintheworldofmen.TheninadreamonNovember101619hemadethesignificantdiscoverythathecouldonlyfindcertaintyinhisownthoughtscogitoergosum("Ithink;thereforeIexist").Thisdreamfilledhimwithintensereligiousenthusiasm.

　　Descartes'experienceisrepresentativeofcountlessothersineveryfieldofculture.Theunconsciousiscertainlythesourceofinstinctiveactivity.Butincreativethoughttheunconsciousisresponsiblefortheproductionofneworganizedformsfromrelativelydisorganizedelements

　　1.Goodideascomefrom______accordingtothewriter

　　A.theunconscious

　　B.creativeactivities

　　C.dreams

　　D.logicandexperiments