Il bene fra etica e metafisica. La "quaestio de bono" di Goffredo di Poitiers (ca. 1210-1230)

Philip the Chancellor is considered as the initiator of the medieval discussions about the notion of “transcendentals”: his Summa de bono is the first text in which a clear exposition of the “metaphysical” features of notion such as ens, unum, verum and bonum is organized. The background of this master is the intellectual milieu of the new-born University of Paris, in the very first decades of the XIII Century, within which an analysis of some of these notions was already available mainly in the field of the studies on the specific features of the theological language. Geoffrey of Poitiers, who was pupil of Stephen Langton and taught at Paris in the early XIII Century, was deeply engaged in this kind of researches. He was the author of a Quaestio de bono, where he summarized the doctrinal heritage of the previous generations of theologians and fixed the basis of its further development led by the following generation of masters. The article offers a study and a critical edition of Geoffrey’s disputed question, as well as an edition of a part of the master’s Summa where the same issue (de bono) is discussed.