▁ ▁Account s ▁prior ▁to ▁ 1 9 7 8 ▁In ▁certain ▁aspects , ▁the ▁views ▁of ▁many ▁earlier ▁writers ▁on ▁this ▁topic ▁are ▁generally ▁believed ▁to ▁have ▁been ▁su pers eded . ▁ ▁Nevertheless , ▁here ▁is ▁a ▁selection ▁of ▁the ▁best ▁writing ▁prior ▁to ▁ 1 9 7 8 . ▁ ▁Much ▁of ▁it ▁addresses ▁human ▁nature ▁through ▁the ▁strongly ▁related ▁concept ▁of ▁al ien ation : ▁ ▁Er ich ▁From m , ▁Marx ' s ▁Con cept ▁of ▁Man . ▁With ▁a ▁Trans lation ▁of ▁Marx ' s ▁Econom ic ▁and ▁Philosoph ical ▁Man us cript s ▁by ▁T . ▁B . ▁B ottom ore , ▁( 1 9 6 1 ). ▁ ▁Eug ene ▁K amen ka , ▁The ▁Eth ical ▁Found ations ▁of ▁Marx ism ▁( 1 9 6 2 ). ▁ ▁The ▁entire ▁book ▁can ▁be ▁read ▁online ▁. ▁ ▁Ist ván ▁M és zá ros , ▁Marx ’ s ▁Theory ▁of ▁Ali en ation ▁( 1 9 7 0 ). ▁ ▁Se ctions ▁can ▁be ▁read ▁online ▁. ▁ ▁Bert ell ▁O ll man , ▁Ali en ation : ▁Marx ' s ▁Con ception ▁of ▁Man ▁in ▁Capital ist ▁Society ▁( 1 9 7 1 ). ▁Many ▁chap ters , ▁including ▁some ▁directly ▁relevant ▁to ▁human ▁nature , ▁can ▁be ▁read ▁online ▁. ▁ ▁John ▁Pl amen atz , ▁Karl ▁Marx ' s ▁Philosoph y ▁of ▁Man , ▁( 1 9 7 5 ). ▁ ▁Rec ent ▁general ▁accounts ▁ ▁Marx ▁and ▁Human ▁Nature : ▁Ref