Salvete eis qui legant - 

Stoicism is coherent, I would say.  It accords with how life is.  It is a project, not a belief system.  Its doctrines have survived in a paucity of reporting and original texts, and stand or fail in our application of them and in our consciences.  To live according to Nature is a project, a quest, a  continuous goal.  In that regard, it parallels religious orientations, but it is not a religion; rather, an attitude and an empiricism.  

Valete.