First Paragraph: The volume under consideration is presented as the final element of the monumental series An Anthology of Philosophy in Persia, which started in 1999 with From Zoroaster to ʿUmar Khayyām (Vol. I, Oxford University Press; republished in 2007 by I. B. Tauris), and continued with Ismaili Thought in the Classical Age (Vol. 2, Oxford University Press, 2001; Suheyl Academy, 2005; I. B. Tauris and The Institute of Ismaili Studies, 2008), Philosophical Theology in the Middle Ages and Beyond (Vol. 3, I. B. Tauris and The Institute of Ismaili Studies, 2010), and From the School of Illumination to Philosophical Mysticism (Vol. 4, I. B. Tauris and The Institute of Ismaili Studies, 2013). With the almost 600 pages of the present volume, a quarter of century of groundbreaking research and painstaking organizational efforts by the general editor, Seyyed Hossein Nasr, and his co-editor, Mehdi Aminrazavi, has come happily to an end. In bringing to completion this volume – and, with it, the colossal enterprise which it concludes – the two main editors have been assisted by a vast and qualified group of scholars, mainly but not exclusively Iranian, whose name are recorded in the List of Contributors (pp. xvii-xx) and who have mostly penned the English translations of the chosen texts.