Philosophy 128: Practical Ethics

Reading list 2024–25

Essays should be shorter than 2,000 words (preferably closer to 1800 words) and ideally submitted as Microsoft Word documents, which allows me to make use of Word’s comment function.

non-consequentialist doctrines

The Doctrine of Doing and Allowing

Common-sense moral thinking endorses agent-relative constraints, which stand in the way of doing harm even when the cost of refraining from harm is that more harm is done overall (e.g. by others). In this way, it makes doing harm to others harder to justify than merely allowing harm to come to them. This is the Doctrine of Doing and Allowing (DDA). But it is not clear that the distinction can bear such weight or even that it can be applied in any coherent way, and sceptics—particularly consequentialists—argue that the DDA should be rejected. This week, we analyse and investigate the plausibility of the DDA.

Question: Can a distinction in moral significance be defended between harms I do and harms I merely fail to prevent?

The Doctrine of Double Effect

A second, more controversial doctrine, the Doctrine of Double Effect (DDE), also attracts hostility from consequentialists, but there are plenty of non-consequentialists who are sceptical about it too. The DDE distinguishes between harms we intend and harms we foresee but don’t intend, placing a greater obstacle to permissibility in the case of the former. Critics argue that it has absurd implications; defenders argue that it is necessary to explain powerful intuitive verdicts about well-known ‘Trolley Cases’, among other examples.

Question: Are intentions relevant to permissibility in the way that defenders of the DDE suppose? Why?

affluence, poverty, and collective action

The moral demands of affluence

Few who think about them much are untroubled by the extremes of poverty and inequality that characterise the contemporary world. Given the scale of the problem, the odd donation to charity seems woefully inadequate. At the same time, anything that wouldn't be woefully inadequate seems almost impossibly demanding. So what are we to do? This week, we consider a famous challenge due to Peter Singer together with some developments of it and some responses.

Question: What do affluent members of wealthy states owe to those whose lives are threatened by severe poverty?

Effective altruism

Suppose that you are convinced that you ought to do something to alleviate extreme poverty. What considerations should guide you as you think about what in particular to do? Effective altruists argue that considerations of cost-effectiveness are of overriding moral importance, and that this forces us to rethink charitable giving and the structure of ethics and obligation more generally. This week, we consider some defences and criticisms of effective altruism, attempting to ascertain to what degree cost-effectiveness really is a moral requirement and whether effective altruists are really asking too much.

Question: Am I morally required to be an effective altruist?

Collective action and cumulative impact

For certain moral issues, such as climate change or voting, it might seem that the actions of an isolated individual make no real difference to the overall outcome, whereas the actions of many individuals can collectively make an important difference. What should we make of such cases? If my contribution considered on its own would not make any difference, is there any reason for me to make it?

Question: When bringing about a morally important outcome requires the contributions of so many people that my own contribution makes no difference or only an imperceptible difference, is there any moral reason for me to contribute?

moral status

The moral status of human and non-human animals

Some animal rights activists have planted bombs and committed arson in defence of non-human animals’ lives. At the other extreme, AA Gill notoriously shot a baboon merely to “get a sense of what it might be like to kill someone”. In between, there are Jains, vegans, pescatarians, vegetarians, ‘ethical carnivores’, and representatives of a wide range of other attitudes to non-human animals. This week, we try to get to grips with the ethics of human relations with non-human animals, focusing on the question whether it is ethically defensible to treat humans as if they have a special moral status.

Question: Is it wrong to eat meat even setting aside concerns about climate change and industrial farming practices?

Abortion

Few topics are as politically controversial as the topic of abortion. Some believe that abortion at any stage of fœtal development is murder; others believe that almost any abortion-restricting legislation is an attack on women's rights. This week, we try to clarify the debate and arrive at a verdict about the moral permissibility of abortion.

Question: Under what circumstances, if any, is abortion permissible?

existence and non-existence

The non-identity problem

One of the most interesting problems in contemporary moral philosophy is the ‘non-identity problem’. The problem is that acts that bring about circumstances in which people suffer harms that intuitively wrong them may also be acts that bring those people into existence. Thus, it’s hard to see how the acts can in fact wrong them, unless their lives are so bad as not to be worth living. This week, we get to grips with and consider attempts to solve the non-identity problem.

Question: Can I wrong someone by acting in a way that causes them to exist?

Death

Most people fear death. We tend to regard the death of another person as bad for her in most cases. And the badness of death seems to be part of the explanation of the wrongness of killing. If death were not in general bad for people, you might think, it would seem less obvious that killing is in general wrong. But it is surprisingly hard to account for the badness of death. We try to do so this week.

Question: Is death bad? Why?

attacking and defending

Defensive killing

Many people believe that it is permissible to use lethal force, if necessary, in self-defence against culpable aggressors who themselves pose a lethal threat. But there are surely limits to the permissibility of killing in self-defence. No one thinks that you may kill someone who is about to pull your hair accidentally, for instance. This week we look at attempts to answer questions about the ground and limits of permissions to kill in self-defence.

Question: Do we have a right to use lethal force in self-defence? Are there any limits to it?

Killing in war

Much international law relating to the conduct of war assumes ‘the moral equality of combatants’ (MEC)—the view that soldiers on all sides of the conflict are equally permitted to engage in lethal violence and equally liable to be killed. But this is a relatively recent development; prior to the seventeenth century, philosophers and jurists made principles of jus in bello (right in the conduct of war) dependent on principles of jus ad bellum (right in declaring war). In the last couple of decades, MEC has come under renewed attack, most notably by Jeff McMahan. This week we consider arguments for and against MEC.

Question: Are combatants in war equally permitted to use lethal violence against their enemies even if their causes are not equally just?

Punishment

There is widespread opposition to capital punishment, but not to punishment more generally. Yet it is surprisingly hard to justify punishing people for wrongdoing. In this topic we consider some leading theories of punishment—a number of them building on or relating punishment to self-defence—and try to determine whether any of them succeeds.

Question: Can punishment for wrongdoing be justified?

race and institutions

Affirmative action

Selection practices designed to increase representation of certain groups in institutions, associations, and companies are permitted and sometimes required in some states, but they are controversial. Here we ask how they are best defended and whether such defence is ultimately successful.

Question: Is affirmative action objectionably unfair to members of the groups it discriminates against?

Racial profiling

Racial profiling—roughly, treating an individual’s race as a basis for greater scrutiny of her behaviour or history by law enforcement agents—seems wrong to most of us. Yet it may in some cases reflect good statistical evidence. Can the wrong of racial profiling be explained in such cases too, or is it sometimes permissible at least in principle? That is the question we engage with in this topic.

Question: What is wrong with racial profiling?