New publication

Roger Bacon,
Des signes

Avant-propos, introduction, traduction, commentaire et notes par I. Rosier-Catach, L. Cesalli, F. Goubier et A. de Libera.

Paris: Vrin, 2022

Écrit en 1267 le De signis du franciscain anglais Roger Bacon, proposé ici en une traduction française inédite, est l’un des grands textes philosophiques du Moyen Âge. Situé au cœur des controverses sémantiques, logiques, psychologiques et ontologiques qui nourrissent les débats entre Paris et Oxford, il intègre l’apport des traditions aristotélicienne et augustinienne pour proposer une théorie des signes qui se fonde sur une double relation du signe à l’interprète et au signifié, et accorde la primauté à l’interprète lequel détermine et modifie « selon son bon plaisir » la signification du signe. Le commentaire continu du texte, un avant-propos historiographique, une introduction sur la genèse de l’œuvre et plusieurs annexes offrent une présentation d’ensemble de la philosophie du langage du XIIIe siècle, dans sa double dimension sémantique et pragmatique.

view the book on the publisher’s website

RBRS at SIEPM Paris 2022

The 15th SIEPM Congress has been a splendid occasion for RBRS members to meet again after the troubled years of the pandemic. Roger Bacon has been among the most discussed philosophers in Paris, with many panels dedicated to his thought (some of which sponsored by RBRS) and a splendid opening lecture by Alain De Libera that touched upon Bacon’s radical philosophy. Here are some pictures taken during the official RBRS dinner and one of the panels sponsored by our society.

CFA: SIEPM Congress 2022

SIEPM Congress 2022

The Roger Bacon Research Society is willing to propose two panels for the SIEPM congress which will be held in Paris from 22-26 August 2022.

The congress will focus on “La pensée radicale au Moyen Âge / Radical thinking in the Middle Ages”. Accordingly, our two panels (3 people + chair) will expand on Bacon’s radical positions.

If you would like to participate and give a talk on instantiations of Bacon’s radicalism in his theories, criticism, and methods, please, send your proposal to Meagan Allen ( by 10 October 2021.

Submitted proposals should follow the SIEPM requirements available at the following link.

As always, we keep at your disposal for any questions you might have. You can also reach us at

CFA: Saint Bonaventure Conference 2022

Saint Bonaventure Conference 2022

The Roger Bacon Research Society is soliciting paper proposals for two sponsored sessions (3-4 papers each) for a conference on Roger Bacon’s Moralis Philosophia, to be held at St. Bonaventure University (New York) from July 21-24, 2022. This conference will center around the new translation of the Moralis Philosophia, by Jeremiah Hackett and Thomas S. Maloney. In light of the themes of the conference, the Roger Bacon Research Society will be proposing two sessions:

  1. The Political and Religious Implications of Bacon’s Ethics
  2. Bacon’s Ethics and its Classical Sources

 We welcome any paper proposals that relate to either of these categories. Please submit an abstract of 200-250 words to Meagan Allen ( by Sunday, September 26, 2021. In the email, please indicate your institutional affiliation and for which of our two panels you would like to be considered.