In the ninth century, Plotinus was translated into Arabic. Long sections of this translation went under the title Theology of Aristotle. The attribution of the work to Aristotle helped the text to become an influential source of Neoplatonic ideas in the Arabic-speaking world. But the Arabic Plotinus materials are important not only as a conduit for Plotinus’ ideas; they also differ on numerous points from their ultimate source. Thus the Theology, along with other texts derived from the Arabic version of Plotinus, in fact constitute an interpretation of Plotinus’ thought, and not just a translation. The Theology in turn becomes the chief text conveying Plotinian ideas to the Arabic-speaking tradition.