121-180 145 173 180 185 189 active2ndcentury ancient authors brothersandsisters business businessdevelopment businessstudies classical conductoflife congresses correspondence correspondencefronto correspondencemarcusaurelius correspondenceseneca dialogues drama earlyworksto1800 economicdevelopment economics emperors entrepreneurship epictetus ethics familyreunions fronto general greek hierocles history historyandcriticismseneca languages latin latinlanguages latinletters lco003000 leisure life literarycollections literatures logic love-letters luciusannaeus management marcusaurelius marcuscornelius medieval mis mothersandsons newbusinessenterprises orators phi002000 philosophy philosophymarcusaurelius principlesofmanagement projectmanagement religiouslife romanempirephilosophystoicism rome selectionsepictetus self-help seneca siblings social socrates spirituallife stoics strategicmanagement strategicplanning surveys translationsintoenglish translationsintoenglishseneca wisdom