Moreover，thesefactorsthemselvesariseatagivenmoment，anditisnotuntillaterthattheyacquiredthatphysiognomywhichtheyhaveintheparticularnarration。ThisState，itiswellknown，aroseatagivenmoment。Asforeveryruleoflaw，itmayeitherberememberedorconjecturedthatitwentintoeffectundersuchorsuchcircumstances。Asformanycustoms，itmayberememberedthattheywereintroducedatagivenmoment；andthesimplestcomparisonsofthefactsindifferenttimesordifferentplaceswouldshowhowsociety，asawhole，andinitscharacterofbeinganaggregationofdifferentclasses，hadtakenandtookcontinuouslyvariousforms。
Thereciprocalactionofthedifferentfactors，withoutwhichnoteventhesimplestnarrationwouldbepossible，likethemoreorlessexactinformationupontheoriginsandthevariationsofthefactorsthemselves，calledforresearchandthoughtmorethandidtheconstructivenarrationofthosegreathistorianswhoarerealartists。And，ineffect，theproblemswhicharisespontaneouslyfromthedataofhistory，combinedwithothertheoreticalelements，gavebirthtothedifferentso-calledpracticaldisciplines，whichinamoreorlessrapidfashionandwithvaryingsuccess，havedevelopedfromtheancientsuptoourdays，fromethicstothephilosophyoflaw，frompoliticstosociology，fromlawtoeconomics。
Nowwiththeriseandformationofsomanydisciplines，throughtheinevitabledivisionoflabor，pointsofviewhavebeenmultipliedoutofallproportion。
Itiscertainthatforthefirstandimmediateanalysisofthemultipleaspectsofthesocialcomplexus，alonglaborofpartialabstractionwasnecessary：
whichhasalwaysinevitablyresultedinone-sidedviews。Thiscanbeshown，inaclearerandmoreevidentmannerthanforanyotherdomain，inthatoflawanditsvariousgeneralizations，includingthephilosophyoflaw。Byreasonoftheseabstractions，whichareinevitableinparticularandempiricalanalysis，andbytheeffectofthedivisionoflabor，thedifferentsidesanddifferentmanifestationsofthesocialcomplexuswere，fromtimetotime，fixedandstratifiedingeneralconceptionsandcategories。Theworks，theeffects，theemanations，theeffusionsofhumanactivity——law，economicforms，principlesofconduct，etc。，——were，sotospeak，translatedandtransformedintolaws，intoimperativesandintoprincipleswhichremainedplacedabovemanhimself。Andfromtimetotimeithasbeennecessarytodiscoveranewthissimpletruth：thattheonlypermanentandsurefact，thatistosay，theonlydatumfromwhichdepartsandtowhichreturnseverypracticaldetailofdiscipline，ismengroupedinadeterminedsocialformbymeansofdeterminedconnections。Thedifferentanalyticaldisciplines，whichillustratethefactsthatdevelopinhistory，havefinallygivenrisetotheneedofacommonandgeneralsocialscience，whichrenderspossibletheunificationofthehistoricprocessus，andthematerialisticdoctrinemarkspreciselythefinalterm，theapexofthisunification。