 Seneca does not write as a philosopher who creates or expounds a philosophical theory from the ground up. Rather, he writes within the track of an existing system that he is largely in agreement with. A reconstruction of Seneca’s philosophy, if it aimed at some kind of completeness, would have to be many-layered. At several points, it would have to include accounts of earlier Stoic philosophy, and discuss which aspects of these earlier theories become more or less prominent in Seneca’s thought. At times Seneca’s own contribution consists in developing further a Stoic theory and adding detail to it. At other times, Seneca dismisses certain technicalities and emphasizes the therapeutic, practical side of philosophy.