Philip is one of the first major thinkers in the Latin West whose work reflects the influence of the recent influx of newly translated texts from Aristotle and his Arabic commentators, particularly in the area of metaphysics. This helps to explain the distinctive character of his work (see MacDonald 1992). His use of Aristotelian metaphysics is especially interesting given that many of Aristotle’s metaphysical treatises and work in natural philosophy were officially banned at Paris during the time that he was working on Summa de bono. Philip’s text greatly influenced that of his contemporaries and successors, including Albertus Magnus, Alexander of Hales, and even Thomas Aquinas (see MacDonald 1992, Houser 2004, Lottin 1957).