内容简介
Whydowedothethingswedo?Overadecadeinthemaking,thisgame-changingbookisRobertSapolsky'sgenre-shatteringattempttoanswerthatquestionasfullyasperhapsonlyhecould,lookingatitfromeveryangle.Sapolsky'sstorytellingconceptisdelightfulbutitalsohasapowerfulintrinsiclogic:hestartsbylookingatthefactorsthatbearonaperson'sreactionintheprecisemomentabehavioroccurs,andthenhopsbackintimefromthere,instages,ultimatelyendingupatthedeephistoryofourspeciesanditsgeneticinheritance.Andsothefirstcategoryofexplanationistheneurobiologicalone.Whatgoesoninaperson'sbrainasecondbeforethebehaviorhappens?Thenhepullsouttoaslightlylargerfieldofvision,alittleearlierintime:Whatsight,sound,orsmelltriggersthenervoussystemtoproducethatbehavior?Andthen,whathormonesacthourstodaysearliertochangehowresponsivethatindividualistothestimuliwhichtriggerthenervoussystem?Bynow,hehasincreasedourfieldofvisionsothatwearethinkingaboutneurobiologyandthesensoryworldofourenvironmentandendocrinologyintryingtoexplainwhathappened.Sapolskykeepsgoing--nexttowhatfeaturesoftheenvironmentaffectedthatperson'sbrain,andthenbacktothechildhoodoftheindividual,andthentotheirgeneticmakeup.Finally,heexpandstheviewtoencompassfactorslargerthanthatoneindividual.Howculturehasshapedthatindividual'sgroup,whatecologicalfactorshelpedshapethatculture,andonandon,backtoevolutionaryfactorsthousandsandevenmillionsofyearsold.Theresultisoneofthemostdazzlingtoursdehorizonofthescienceofhumanbehavioreverattempted,amajesticsynthesisthatharvestscutting-edgeresearchacrossarangeofdisciplinestoprovideasubtleandnuancedperspectiveonwhyweultimatelydothethingswedo...forgoodandforill.Sapolskybuildsonthisunderstandingtowrestlewithsomeofourdeepestandthorniestquestionsrelatingtotribalismandxenophobia,hierarchyandcompetition,moralityandfreewill,andwarandpeace.Wise,humane,oftenveryfunny,Behaveisatoweringachievement,powerfullyhumanizing,anddownrightheroicinitsownright.