Seneca's collection of letters to Lucilius, collected in Letters from a Stoic, includes numerous letters, many of which are personal essays that address the problems raised above. These letters, which Richard M. Gummere translated from Latin into English, cover a wide range of subjects, including having private discussions, suicide, the dynamics of a master-slave relationship, mourning, god, and even embracing death. So, in order to give you a glimpse inside a deep and complex mind, here is a book that contains beautiful and reflective letters written by one of philosophy's greatest thinkers. Everyone should own a copy of this philosophy book!