This author wrote the aphorisms "Do nothing at random" and  "Erase impressions."  
This author wrote the aphorisms "Do nothing at random" and  "Erase impressions."  He claimed that believing pleasure is good and pain evil leads to impiety by causing one to find fault with Nature.  This thinker compared the cosmos to a city and wrote about the alternatives of "providence or atoms" in his most famous work.  That work was mostly written while this author was stationed at Sirmium and Aquincum and consists of 12 books of thoughts that center around his idea of being rational in order to live in harmony with the logos of the universe.  For 10 points, name this Roman Stoic philosopher, author of the Meditations.
This author wrote the aphorisms "Do nothing at random" and  "Erase impressions."  
marcus aurelius