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The Concept of “Ius” in Thomas Aquinas
Apr 21 - Apr 22
The Concept of Ius in Thomas Aquinas
21-22 April 2023
Pontifical University of the Holy Cross (Santa Croce)
Pontifical University of St Thomas Aquinas (Angelicum)
Languages: English and Italian
Click here to download the full conference program.
The Conference intends to explore the Thomistic concept of ius as it is presented in Thomas Aquinas’s treatise on ius and iustitia in the Secunda Secundae of the Summa Theologiae, that is, as the object of the virtue of justice and as the just thing itself (ipsa res iusta). This analysis takes into consideration the entirety of Aquinas’s account of lex from the Prima Secundae of the Summa Theologiae, as this account is interrelated with his understanding of lex as a ratio of ius (S. Th. II-II, q. 57, a. 1, ad 2). The Conference also aims to analyze the inherent connection between justice which has ius as its object—what might be called a juridical aspect of iustitia—and broader issues of the salvific and moral aspects of justice.
To complete this analysis, it is necessary to inquire into Aquinas’s historical and doctrinal sources, the relevant texts in which he elaborates his account of ius, justice, and lex, as well as the reception of his juridical thought down the centuries until the present day. To this end, the Conference will also reflect on contemporary assessments of the tension between the objective and subjective meanings of ius both in Aquinas’s thought and in the Thomistic tradition. In addition, the Thomistic foundations of the notion of ius and of the virtue of justice will be explored, together with research into the interconnectedness between justice, the concept of good, and practical reasonableness.
The Conference aims to show how the analysis of the Thomistic concept of ius, rather than being only of historical interest, may prove to be fruitful for present-day issues in legal theory, as well as for a dialogue with contemporary legal-philosophical conceptions of the juridical phenomenon, law, and rights. While recognizing the relevance of this fruitfulness for the life of law at all levels of research, the Conference highlights the particular relevance of the Thomistic vision of ius for the social teaching of the Catholic Church and for canon law.
Faculty of Canon Law of the Pontifical University of the Holy Cross,
Faculty of Canon Law of the Pontifical University of Saint Thomas Aquinas,
and the Angelicum Thomistic Institute
Schedule
Friday, 21 April | Santa Croce
9:00 AM | Greeting from the Dean of the Faculty of Canon Law
Jesús Miñambres
9:15 AM | Introduction to the Conference
Loïc-Marie Le Bot, OP
9:30 AM | The Concept of Ius in Aquinas: Analysis of Texts and Sources
Petar Popović
10:30 AM | L’eclissi del significato oggettivo del concetto di ius di Tommaso d’Aquino nella tradizione tomista sin dalla Scolastica spagnola e la sua riscoperta nella prima metà del XX secolo
Jean-Pierre Schouppe
11:30 AM | Break
12:00 PM | La ricezione del realismo giuridico nei secoli XX e XXI
Carlos José Errázuriz
1:00 PM | Lunch
3:00 PM | Il dibattito circa il concetto tomista dello ius tra i suoi significati oggettivi e soggettivi: Villey, Tierney, Finnis, Brett, Tuck, Fortin, Hervada et al.
Thierry Sol
4:00 PM | Break
4:30 PM | Prospects for the Inclusion of the Thomistic Concept of Ius in Contemporary Legal Philosophy
Jeffrey Pojanowski
5:30 PM | Break
5:45 PM | Breakout Sessions
Saturday, 22 April | Angelicum
9:15 AM | Greeting from the Angelicum Thomistic Institute
Simon Francis Gaine, OP
9:30 AM | The Analogies of Justice: Aquinas on Justice as a State, a Virtue and a Juridical Reality
Michael Sherwin, OP
10:30 AM | The Interconnectedness between Justice, Law, and the Concept of Good: Thomistic Premises for the Concept of Ius as Juridical Good
Dominic Legge, OP
11:30 AM | Break
12:00 PM | The Conformity between Ius as the Object of Justice and the Virtue of Charity According to Aquinas
Catherine Joseph Droste, OP
1:00 PM | Lunch
3:00 PM | Inclinazioni naturali e diritto: la giuridicità della legge naturale tomista
Aldo Vendemiati
4:00 PM | Break
4:30 PM | Aquinas’s Concept of Ius and Canon Law
Loïc-Marie Le Bot, OP
5:30 PM | Break
5:45 PM | Breakout Sessions
Watch the event recordings on Youtube.
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English 
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