Plotinus was the greatest philosopher in the 700-year period between Aristotle and Augustine. In this volume, sixteen leading scholars introduce and explain the many facets of Plotinus' complex system. They place Plotinus in the history of ancient philosophy while showing that he was a founder of medieval philosophy. List of contributors vii The Enneads xi Introduction 1(9) Lloyd P. Gerson Plotinus: The Platonic tradition and the foundation of Neoplatonism 10(28) Maria Luisa Gatti Plotinus's metaphysics of the One 38(28) John Bussanich The hierarchical ordering of reality in Plotinus 66(16) Dominic J. O'Meara On soul and intellect 82(23) Henry J. Blumenthal Essence and existence in the Enneads 105(25) Kevin Corrigan Plotinus on the nature of physical reality 130(41) Michael F. Wagner Plotinus on matter and evil 171(25) Denis O'Brien Eternity and time 196(21) Andrew Smith Cognition and its object 217(33) Eyjolfur Kjalar Emilsson Self-knowledge and subjectivity in the Enneads 250(25) Sara Rappe Plotinus: Body and soul 275(17) Stephen R. L. Clark Human freedom in the thought of Plotinus 292(23) Georges Leroux An ethic for the late antique sage 315(21) John M. Dillon Plotinus and language 336(20) Frederic M. Schroeder Plotinus and later Platonic philosophers on the causality of the First Principle 356(30) Cristina D'Ancona Costa Plotinus and Christian philosophy 386(29) John Rist Bibliography 415(22) Index of passages 437(20) Index of names and subjects 457