""Title Page""; ""Copyright""; ""Contents""; ""Introduction to the Series""; ""Abbreviations""; ""Acknowledgments""; ""Introduction to the Treatise""; ""Note on the Text ""; ""Synopsis""; ""Translation of Plotinus Ennead IV.8 [6]""; ""Chapter 1 Commentary ""; ""Chapter 2""; ""Chapter 3""; ""Chapter 4""; ""Chapter 5""; ""Chapter 6""; ""Chapter 7""; ""Chapter 8""; ""Select Bibliography""; ""Index of Ancient Authors""; ""Index of Names and Subjects""