▁motiv ation , ▁person ality ▁and ▁social ization . ▁ ▁The ▁theoretical ▁bases ▁of ▁system atic ▁compar ative ▁analysis ▁of ▁social ▁structure , ▁which ▁would ▁involve ▁a ▁study ▁of ▁concrete ▁cult ures ▁in ▁concrete ▁systems ▁on ▁various ▁levels ▁of ▁general ization . ▁ ▁Special ▁theories ▁around ▁particular ▁empir ical ▁problem ▁areas . ▁ ▁The ▁" f itting " ▁of ▁the ▁theories ▁to ▁specific ▁empir ical ▁research ▁techniques , ▁such ▁as ▁statistics , ▁and ▁survey ▁techniques . ▁ ▁During ▁his ▁life , ▁he ▁would ▁work ▁on ▁developing ▁all ▁five ▁fields ▁of ▁theoretical ▁concerns ▁but ▁pay ▁special ▁attention ▁to ▁the ▁development ▁on ▁the ▁highest ▁" const it utive " ▁level , ▁as ▁the ▁rest ▁of ▁the ▁building ▁would ▁stand ▁or ▁fall ▁on ▁the ▁solid ity ▁of ▁the ▁highest ▁level . ▁ ▁Despite ▁myth s , ▁Par s ons ▁never ▁thought ▁that ▁modern ▁soci eties ▁exist ▁in ▁some ▁kind ▁of ▁perfect ▁harm ony ▁with ▁their ▁norm s ▁or ▁that ▁most ▁modern ▁soci eties ▁were ▁necessarily ▁character ized ▁by ▁some ▁high ▁level ▁of ▁cons ensus ▁or ▁a ▁" h appy " ▁institution al ▁integration . ▁Par s ons ▁highlight ed ▁that ▁is ▁almost ▁log ically ▁impossible ▁that ▁there ▁can ▁be ▁any ▁" per fect ▁fit " ▁or ▁perfect ▁cons ensus ▁in ▁the ▁basic ▁norm ative ▁structure ▁of ▁complex ▁modern ▁soci eties ▁because ▁the ▁basic ▁value ▁pattern ▁of ▁modern ▁soci eties ▁is ▁generally ▁differenti ated ▁in ▁such ▁a ▁way ▁that ▁some ▁of ▁the ▁basic ▁norm ative ▁categories ▁exist ▁in ▁inher ent ▁or ▁at ▁least ▁potential ▁conflict ▁with ▁each