Aurélien Robert

Contrary to what is generally said about the reception of Epicurus in the Middle Ages, many medieval authors agreed on his great wisdom, even if he made some philosophical and theological errors. From the 12th century to the 14th century on can find several "Lives of Epicurus" in which the best sayings of Epicurus are gathered from ancient sources (Seneca, Cicero, Lactantius, etc.). In this paper, we follow these quite unknown sources about Epicureanism in the Middle Ages. We try to show that if Epicurus was considered as a wise man in the MIddle Ages, Epicureans are condemned because after the Revelation of God's word, Christians can only accept Epicurus's ascetic ethics, not his errors about the eternity of the world, the mortality of the soul et the subordination of happiness to pleasure.

It is well known that during the Middle Ages the Eucharist was not only a theological question but also a philosophical one. Recent studies have shown the semantical and ontological problems concerning the status of substances and accidents after the transsubstantiation. Here the paper focuses on the gnoseological problem of the Eucharist. How do we know that the substance has changed after the consecration of the host? Moreover, how do we manage to know substances in general if sometimes it changes without apparent modifications in the accidental features apprehended by our sense faculties? The aim of this paper is to show that a new dilemma appeared at the end of the 13th century between the sceptical consequences of the dogma of transsubstantiation and the necessity to abandon or at least to interpret differently the sacrament. Wyclif chose the second option while most of the theologians and philosophers tried to adapt their theory of knowledge, especially the Franciscans, to which a large part of this paper is devoted. This paper tries to assess the different solutions to this problem of the knowability of substances.

La querelle sugli universali si presenta come un dibattito prevalentemente ontologico che rimette in gioco l'idea stessa di sostanza ed è un realismo ontologico che non mette per forza in discussione ogni cosa, ma contempla tutta la realtà delle specie e dei generi naturali della sostanza. Gli uomini sono legati tra di loro per convenientia e questo come una semplice similitudine essenziale tra di loro e le loro essenze individuali, secondo la linea espressa da Giovanni di Pietro Olivi , Riccardo di Mediavilla , Vitale di Four , o come parte di una realtà comune, come espresso dall'altra linea rappresentata da Matteo d'Acquasparta . Anche se la loro posizione può essere definita concettualista, la loro teoria della conoscenza è ontologicamente neutra, dal momento che la ragione non consente di stabilire precisamente la natura dell'universale

Dino del Garbo, médecin actif dans les premières décennies du xiv e siècle, est surtout connu pour son commentaire au poème de Guido Cavalcanti Donna me prega. La présente étude propose l’édition d’une question quodlibétique sur la capacité de l’imagination à altérer le corps, disputée à Bologne ou Sienne dans les années 1320. Nous examinons le contexte médical et philosophique dans lequel s’inscrit cette question, en montrant notamment comment le débat s’est progressivement cristallisé autour de l’opposition entre un modèle avicennien et un modèle aristotélicien des rapports entre l’âme et le corps. L’analyse de ce débat permet d’éclairer d’un jour nouveau la glose de Dino del Garbo à Donna me prega et aussi, de manière incidente, le poème lui-même.