This book offers a survey of the teachings of, and relations between, four leading figures in third-century Platonism: Longinus, Plotinus, Porphyry and lamblichus. It documents and explains the coalescence of Aristotelian and Platonic elements in the Platonic tradition before the 3rd century, considers the effect of the new political environment on these thinkers, and argues that the antagonistic interests of the two older men (Longinus and Plotinus)...