Baarda, and Jaap Mansfeld, 92–117. Leiden, The Netherlands: Brill. Opsomer, Jan. 1998. In Search of the Truth: Academic Tendencies in Middle Platonism. Brussels: Koninklijke Academie voor Wetenschappen, Letteren en Schone Kunsten. Zambon, Marco. 2006. "Middle Platonism." In A Companion to Ancient Philosophy. Edited by Mary Louise Gill and Pierre Pellegrin, 561–576. Oxford: Blackwell. External links Middle Platonism in Internet Encyclopedia of Philosophy Platonism Ancient Roman philosophy