ISUS Satellite Workshops

Subsequent to the main conference there will be three satellite workshops: J.S. Mill’s Naturalism – Moral and Political (Organised by Philipp Schink and Michael Schefczyk), Prioritarianism (Organised by Annette Dufner, Vuko Andrić and Rudolf Schüßler), and Derek Parfit’s Philosophical Legacy (Organised by Christian Seidel). Below we provide detailed information on each of the workshops.

Spaces at the workshops might be limited. For details, please get in touch with the respective organisers.

J.S. Mill’s Naturalism – Moral and Political (July 27)


The workshop aims to discuss the prospects and limitations of John Stuart Mill’s ethical naturalism. We will examine how one can achieve a better understanding of the intricacies of Mill’s attempt to justify morality, especially in the light of new research findings. In addition the workshop will highlight how an improved understanding of Mill’s practical philosophy provides insights for the contemporary discussion in metaethics, moral philosophy and political theory. Furthermore, discussing Mill’s practical philosophy may also be a contribution to gaining insights into the burdens of justification of ethical naturalism in general.



  • Philipp Schink (Frankfurt University)
  • Michael Schefczyk
    (Karlsruhe Institute of Technology)


  • Room B




Friday, July 27

  • 10.15-11.00
    Introduction: Mill’s Naturalism – Prospects and Problems of a Naturalistic Justification of Normativity
    Philipp Schink
  • 11.00-12.30
    Second Naturalism in Mill
    Christopher Macleod

12.30–14.00:  Lunch Break

  • 14.00-15.30
    Mill on the Authority of Morality
    Tatjana Tarkian
  • 15.30-17.00
    Mill’s Ethical Naturalism
    David Brink
  • 17.00-18.30
    Liberal Naturalism in Mill’s Moral Philosophy
    Dale E. Miller
Programme Naturalism.pdf
Adobe Acrobat Document 41.1 KB

Prioritarianism (July 27 & 28)


This workshop discusses new contributions on prioritarianism. Prioritarianism is an important position in discussions about distributive justice, consequentialist axiologies, and theories of beneficence. Prioritarianism can be understood as the position that an increment in an individual’s well-being matters more the worse off the individual is in absolute terms. 


Prioritarianism has been favoured over utilitarianism because the latter simply requires the maximization of total well-being and does sanction equality beyond the ramification of such maximization. Prioritarianism, in contrast, tends to favour more equal distributions of well-being. Prioritarianism has also been preferred to egalitarianism because egalitarianism, unlike prioritarianism, holds that equality is per se desirable and thus invites the so-called Levelling-Down Objection. This Objection takes offence at egalitarianism’s implication that a situation can be improved (in one respect) by making the better-off as badly off as the worse-off.


However, prioritarianism has been faced with objections of its own. Moreover, it is doubtful if the supposed advantages of prioritarianism stand up to scrutiny. Finally, there are debates over how best to understand/formulate prioritarianism, about its rationales, and about what prioritarianism implies in specific contexts. The workshop seeks to shed light on these issues.



  • Vuko Andrić (Bayreuth University)
  • Annette Dufner (Bonn University)
  • Rudolf Schüßler (Bayreuth University)


  • Room A




Friday, July 27

  • 10.00–11.15
    Prioritarianism and the Negativity Bias
    Ingmar Persson 
  • 11.30–12.45
    Aggregation vs. Identification of Respects in Theories of Moral Evaluation
    Weyma Lübbe 

12.45-14.00 Lunch Break

  • 14.00–15.15
    Prioritarianism: Ex Ante, Ex Post or Factualist Criterion of Rightness
    Nils Holtug 
  • 15.30–16.45
    Is (Ex Ante) Prioritarianism Impartial?
    Annette Dufner 


Saturday, July 28

  • 10.00–11.15
    Prioritarian Intuitions
    Vuko Andrić
  • 11.30–12.45
    How to Define 'Prioritarianism' and how to Distinguish It from (Moderate) Egalitarianism
    Christoph Lumer

12.45-14.00  Lunch Break

  • 14.00–15.15
    Time, Age, and the Priority View
    Andrew Williams 
  • 15.30–16.45
    Exploring Pro Tanto Prioritarianism
    Rudolf Schüßler:


Programme Prioritarianism.pdf
Adobe Acrobat Document 45.8 KB

Derek Parfit’s Philosophical Legacy (July 27)


The aim of the workshop is to explore Derek Parfit’s wide-ranging, original and inspiring contributions to philosophy (moral theory, metaethics, the foundations of normativity and rationality, population ethics, collective action problems, personal identity) and to discuss contemporary issues emanating from his writings.


  • Roger Crisp (University of Oxford)
  • Julia Driver
    (Washington University in St.Louis)
  • Matthias Hoesch (WWU Münster)
  • Brad Hooker (University of Reading)
  • Susanne Mantel (Saarbrücken University)
  • Katarzyna de Lazari-Radek (University of Łódź)
  • Melinda Roberts (New Jersey)




  • Room C


Programme ParfitsLegacy.pdf
Adobe Acrobat Document 161.0 KB


Presentations will be no longer than 30 minutes; there will be at least 30 minutes time for discussion.


Friday, July 27

  • 08.45-09.00:
    Welcome & Introduction
    Christian Seidel
  • 09.00-10.00:
    Derek Parfit on Act-Consequentialism
    Katarzyna de Lazari-Radek

10.00-10.30: Coffee Break

  • 10.30-11.30:
    The Anti-Act-Consequentialist Legacy of Parfit’s Later Work
    Brad Hooker
  • 11.30-12.30:
    Parfit’s Kantianism
    Matthias Hoesch

12.30-13.30: Lunch Break

  • 13.30-14.30
    The Second Mistake of Moral Mathematics
    Julia Driver
  • 14.30-15.30
    The Better Chance Puzzle, the Nonidentity Problem and the Value of Existence
    Melinda Roberts

15.30-16.00: Coffee Break

  • 16.00-17.00
    Facts, Reasons, and Rationality
    Susanne Mantel
  • 17.00-18.00
    Parfit on Partiality
    Roger Crisp