Aresomepeoplebornclever,andothersbornstupidOrisintelligencedevelopedbyourenvironmentorexperienceStrangelyenough,theanswertobothquestionsisyes。
Ontheonehand,ifwetaketwopeopleatrandomfromthecrowd,itisverylikelythattheirdegreesofintelligencewillbecompletelydifferent.However,ifwetaketwoidenticaltwins,chancesarethattheywillbeasintelligentaseachother.Therefore,aconclusioncanbedrawnthatintelligenceistosomeextentsomethingwearebornwith.Thecloserthebloodrelationshipbetweentwopeople,theclosertheyarelikelytobeinintelligence。
Ontheotherhand,though,ifweputtwoidenticaltwinsindifferentenvironments,forexample,wemightsendonetouniversityandtheothertoafactorywheretheworkisboring,wewouldfinddifferencesintheirintelligenceseveralyearslater,whichindicatesthatenvironmentdoesplayacrucialroleinourintelligence。
Justaseverycoinhastwosides,ourintelligenceispartlybornandpartlydeveloped.Thesurewaytodevelopourintelligenceisintelligentparentsaswellasagoodenvironment.