David S. Oderberg

This paper tests the following hypothesis: that the prime matter of classical Aristotelian-Scholastic metaphysics is numerically identical to energy. Is P=E? After outlining the classical Aristotelian concept of prime matter, I provide the master argument for it based on the phenomenon of substantial change. I then outline what we know about energy as a scientific concept, including its role and application in some key fields. Next, I consider the arguments in favour of prime matter being identical to energy, followed by the arguments against. The method used is that of ontological profile comparison: does the profile of prime matter match, in key features, that of energy? An affirmative answer, that P=E, would be a momentous discovery: it would show that one of the most neglected and derided ideas of pre-modern metaphysics – a contributor to its downfall in the wake of the Scientific Revolution – was right all along. From a negative answer we would still learn much about the interaction of science and metaphysics. It turns out, however, given what we currently know, that the answer is not quite as simple as one might hope.

It is a matter of contention whether or not a general explanatory framework for the biological sciences would be of scientific value, or whether it is even achievable. In this paper we suggest that both are the case, and we outline proposals for a framework capable of generating new scientific questions. Starting with one clear characteristic of biological systems – that they all have the potential to make mistakes - we aim to describe the nature of this potential and the common processes that lie behind it. Given that under most circumstances biological systems function effectively, an examination of different kinds of mistake-making provides pointers to mechanisms that must exist to make failure uncommon. This in turn informs a framework for systematic enquiry, which in this paper we apply to the haemostatic system, but which we believe could be applied to any system across biology.

This paper defends partiality as an inherent, essential part of ethical decision-making. First, the concept of charity as a kind of universal benevolence is spelled out, drawing on key ideas from classical religious thinking. I then argue that any justification of partiality must appeal to the good first, rather than rights. There follows a justification of partiality via an argument from the idea of control over the good. The next section seeks to harmonize partialistic preference with universal charity, explaining the concept of love of neighbour. There follows an outline of the key principles required for setting out an order of charity based on different kinds of special relationship. While not all of this theistically driven approach to the order of charity translates easily into secular moral thought, enough does to suggest that the view defended is at the least worthy of consideration and not to be dismissed lightly. At best, it has much in it that is commendable to secular common sense.

We live in a liberal, pluralistic, largely secular society where, in theory, there is fundamental protection for freedom of conscience generally and freedom of religion in particular. There is, however, both in statute and common law, increasing pressure on religious believers and conscientious objectors (outside wartime) to act in ways that violate their sincere, deeply held beliefs. This is particularly so in health care, where conscientious objection is coming under extreme pressure. I argue that freedom of religion and conscience need to be put on a sounder footing both legislatively and by the courts, particularly in health care. I examine a number of important legal cases in the UK and US, where freedom of religion and conscience have come into conflict with government mandates or equality and anti-discrimination law. In these and other cases we find one of two results: either the conscientious objector loses out against competing rights, or the conscientious objector succeeds, but due to what I consider unsound judicial reasoning. In particular, cases involving cooperation in what the objector considers morally impermissible according to their beliefs have been wrongly understood by some American courts. I argue that a reasonable theory of cooperation incorporated into judicial thinking would enable more acceptable results that gave sufficient protection to conscientious objectors without risking a judicial backlash against objectors who wanted to take their freedoms too far. I also venture into broader, more controversial waters concerning what I call freedom of dissociation – the fundamental right to withdraw from associating with people, groups, and activities. It is no more than the converse of freedom of association, which all free societies recognise as a basic right. How far should freedom of dissociation go? What might society be like if freedom of dissociation were given more protection in law than it currently has? It would certainly give freedom of religion and conscience a substantial foundation, but it could also lead to discriminatory behaviour to which many people would object. I explore some of these issues, before going back to the narrower area of freedom of conscience and religion in health care, making some proposals about how the law could strengthen these basic pillars of a liberal, free society.

According to divine premotionism, God does not merely create and sustain the universe. He also moves all secondary causes to action as instruments without undermining their intrinsic causal efficacy. I explain and uphold the premotionist theory, which is the theory of St Thomas Aquinas and his most prominent exponents. I defend the premotionist interpretation of Aquinas in some textual detail, with particular reference to Suarez and to a recent paper by Louis Mancha. Critics, including Molinists and Suarezians, raise various objections to the view that premotion is compatible with genuine secondary causation. I rebut a number of these objections, in the course of which I respond to the central challenge that premotionism destroys free will. I also offer a number of positive reasons for embracing the premotionist theory.

The Dead Donor Rule holds that removing organs from a living human being without their consent is wrongful killing. The rule still prevails in most countries, and I assume it without argument in order to pose the question: is it possible to have a metaphysically correct, clinically relevant analysis of human death that makes organ donation possible? I argue that the two dominant criteria of death, brain death and circulatory death, are both empirically and metaphysically inadequate as definitions of human death, and therefore of no epistemic value in themselves. I first set out a neo-Aristotelian theory of death as separation of soul (understood as organising principle) and body, which is then fleshed out as loss of organismic integrity. The brain and circulatory criteria are shown to have severe weaknesses as physiological manifestations of loss of integrity. Given the mismatch between what death is metaphysically speaking, and the dominant criteria accepted by clinicians and philosophers, it turns out that only actual bodily decomposition is a sure sign of death. In this I differ from Alan Shewmon, whose important work I discuss in detail.

Tyron Goldschmidt has recently published a non-paper in which he claims to demonstrate the causal power of absences. His non-paper is, precisely, an empty page. The non-paper is ingenious and at first ‘glance’ the ‘reader’ might think that the absence of words on the page does prove that negative beings can literally cause states such as surprise or disappointment. Closer analysis, however, shows that Goldschmidt’s clever non-paper not only lacks words but also lacks causal power. Serious metaphysical problems pile up if we suppose otherwise.

_Real Essentialism_ presents a comprehensive defence of neo-Aristotelian essentialism. Do objects have essences? Must they be the kinds of things they are in spite of the changes they undergo? Can we know what things are really like – can we define and classify reality? Many, if not most, philosophers doubt this, influenced by centuries of empiricism, and by the anti-essentialism of Wittgenstein, Quine, Popper, and other thinkers. _Real Essentialism_ reinvigorates the tradition of realist, essentialist metaphysics, defending the reality and knowability of essence, the possibility of objective, immutable definition, and its relevance to contemporary scientific and metaphysical issues such as whether essence transcends physics and chemistry, the essence of life, the nature of biological species, and the nature of the person.

Corruptionism is the view that following physical death, the human being ceases to exist but their soul persists in the afterlife. Survivalism holds that both the human being and their soul persist in the afterlife, as distinct entities, with the soul constituting the human. Each position has its defenders, most of whom appeal both to metaphysical considerations and to the authority of St Thomas Aquinas. Corruptionists claim that survivalism violates a basic principle of any plausible mereology, while survivalists tend to reject the principle, though without as much detail as one would like. In this paper I examine both the key exegetical issues and the mereological question, arguing that Aquinas cannot be shown to have supported the principle in question, and that the principle should be rejected on independent grounds. If correct, some key planks in support of survivalism are established, with others to await further examination.

Antonio Ramos Díaz has recently given an extensive critique of what I have called the “storage problem” for materialism about the human mind. I respond to Díaz, showing that his critique fails. First, I rehearse the storage problem, explaining what claims it does and does not involve. I then consider Díaz’s “strong” and “weak” interpretations of my argument, explaining why I do not subscribe to the strong version, which misinterprets my position, especially concerning the meaning of the term “concrete.” His weak version of my argument is closer to what I intend, but Díaz’s own unpacking of this interpretation also commits me to claims I do not, for very good reasons, accept. Díaz does not, in the end, show the storage problem to be—as he thinks—an unsound way of arguing for dualism. Getting concepts into a purely material human intellect still looks like the metaphysical equivalent of fitting a square peg into a round hole.

Contemporary liberal societies are seeing increasing pressure on individuals to act against their consciences. Most of the pressure is directed at freedom of religion but it also affects ethical beliefs more generally, contrary to the recognition of freedom of religion and conscience as a basic human right. I propose that freedom of dissociation, as a corollary of freedom of association, could be a practical and ethically acceptable solution to the conscience problem. I examine freedom of association and explain how freedom of dissociation follows from it, showing how dissociation protects freedom of religion and conscience. Extreme cases, such as the problem of the Satanist nurse, can be handled within a dissociationist framework, so it is reasonable to think less extreme cases can also be dealt with. The serious objection that dissociationism entails unjust discrimination is answered primarily by appeal to the need for ‘full and fair access’ to goods and services by all groups. I then allay important concerns about what kind of liberal society we should want to live in. Next, I refute the charge that a dissociationist society violates liberalism's ‘higher good’, arguing that liberalism strictly does not have a higher good. I conclude with some reflections on what a dissociationist society might look like.

I build a case for the impossibility of natural necessity as anything other than a species of metaphysical necessity – the necessity obtaining in virtue of the essences of natural objects. Aristotelian necessitarianism about the laws of nature is clarified and defended. I contrast it with E.J. Lowe’s contingentism about the laws. I examine Lowe’s solution to the circularity/triviality problem besetting natural necessity understood as relative necessity. Lowe’s way out is subject to serious problems unless it is given an essentialist turn, which he declines to do. Further, his defence of contingency in terms of possible variation in the natural constants is found wanting, as is a related defence given by Kit Fine. I examine and raise problems for a recent, Lowe-inspired defence of a hybrid view of the modal status of laws given by Tuomas Tahko. Aristotelian necessitarianism, by contrast, can account for the sorts of phenomena to which contingentists typically appeal.

Things change. If anything counts as a datum of metaphysics, that does. Change occurs in many ways: it can be accidental or substantial; essential or non-essential; intrinsic or extrinsic; subjective or objective. Changes can be physical, spatial, quantitative, qualitative, natural, artefactual, conceptual, linguistic. Events are arguably best defined as changes in an object or objects. All change is from something and into something, and hence is at least a two-term relation, involving a term from which and a term to which.

There are a number of ways in which a person can share the guilt of another's wrongdoing. He might advise it, command it or consent to it. He might provoke it, praise it, flatter the wrongdoer, or conceal the wrong. He might stay silent when there is a clear duty to denounce the wrong or its perpetrator; or he might positively defend the wrong done. Finally, he might actively participate or cooperate in the wrongdoing. These various activities, apart from cooperation, typically occur before or after the commission of the wrong itself, only provocation being essentially before the fact. As such they fall into the categories of seduction or comfort, seduction being essentially pre-commission and comfort post-commission. In seduction, the seducer typically leads another into doing wrong who has not definitely made up his mind. He does not assist in the commission, but he leads to its occurring. If the principal has made up his mind, actions which might otherwise amount to seduction are best characterized as amounting to scandal, since they do not lead to wrong but reinforce the principal in his wrongful intent or provide to third parties a bad example since they connote approval of the principal's action. Closely related to the concept of seduction is that of solicitation, though perhaps these are best thought of as two aspects of the same kind of activity. Seduction can be thought of as a strong form of inducement to wrong, typified by command, counsel and enticement through praise or provocation. Solicitation is a softer form of inducement typically involving requests, appeals, and invitations. Whereas the seducer or solicitor leads another into wrong but does not assist in its commission, the co-operator does not lead the principal into wrong but assists in its commission.

I explore the increasingly important issue of cooperation in immoral actions, particularly in connection with healthcare. Conscientious objection, especially as pertains to religious freedom in healthcare, has become a pressing issue in the light of the US Supreme Court judgement inHobby Lobby. Section ‘Moral evaluation using the basic principles of cooperation’ outlines a theory of cooperation inspired by Catholic moral theologians such as those cited by the court. The theory has independent plausibility and is at least worthy of serious consideration—in part because it is an instance of double-effect reasoning, which is also independently plausible despite its association with moral theology. Section ‘Case study:Burwell v. Hobby Lobby’ examinesHobby Lobbyin detail. Even if the judgement was correct in that case the reasoning was not, as it involved applying a ‘mere sincerity’ test to the cooperation question. The mere sincerity test leads to absurd consequences, whereas a reasonableness test applied using the theory of cooperation defended here would avoid absurdity. Section ‘A question of remoteness: “accommodations” and opt-outs’ explores the post-Hobby Lobbyproblem further, examining opt-outs and accommodations: theLittle Sisters of the Poorcase shows how opt-outs are misunderstood on a mere sincerity test, which the court rightly rejected. Section 'Application to the medical field:Doogan and Wood’ discusses the UK case ofDoogan and Wood, concerning participation in abortion. Again, a judicially recognised ethic of cooperation, if it were part of the fabric of legal reasoning in such cases, would have enabled the conscientious objectors in this and similar situations to have their freedom of conscience and religion respected in a way that it currently is not.