Of the very numerous works of Favorinus, we possess only a few fragments, preserved by Aulus Gellius, Diogenes Laërtius, Philostratus, Galen, and in the "Suda", "Pantodape Historia" (miscellaneous history) and "Apomnemoneumata" (memoirs, things remembered). As a philosopher, Favorinus considered himself to be an Academic Skeptic; his most important work in this connection appears to have been the "Pyrrhonean Tropes" in ten books, in which he endeavours to show that the Pyrrhonist Ten Modes of Aenesidemus were useful to those who intended to practise in the law courts.