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Our Moral Duty to Eat Meat
ABSTRACT: I argue that eating meat is morally good and our duty when it is part of a
practice that has benefited animals. The existence of domesticated animals depends
on the practice of eating them, and the meat-eating practice benefits animals of that
kind if they have good lives. The argument is not consequentialist but historical,
and it does not apply to nondomesticated animals. I refine the argument and
consider objections.
KEYWORDS:
animals, carnivorism, vegetarianism, veganism, benefit, duty, meat
Eating nonhuman animal meat is not merely permissible but also good. It is what we
ought to do, and it is our moral duty. So I argue. I shall not distinguish the claim that
eating meat is good from the claim that we ought to eat meat. The claim that it is our
duty is a stronger claim. The claim that it is good and the claim that it is what we
ought to do are closely related to the claim that it is our duty: if something is our
duty, then it is good to do it, and we ought to do it. Furthermore, I take the
goods, oughts, and duties here to be moral ones. Note also that by the word
‘animals’ in what follows, I mean nonhuman animals, and by ‘meat’ I mean
nonhuman animal meat.
. The Benefit to Animals of Eating Meat
Why is eating meat good? That is, what makes it good? The basic claim, to put it
crudely at first, is that eating meat is morally good primarily because it benefits
animals. Of course, the practice does not benefit a particular animal that we eat at
the time that we eat it. Nevertheless, the existence of that animal and animals of
that kind depends on human beings eating animals of its kind and, hence, that
meat-eating practice benefits them. Domesticated animals exist in the numbers that
they do only if there is a practice of eating them. For example, the many millions
of sheep in New Zealand would not begin to survive in the wild. They exist only
because we have a practice of eating them. The meat-eating practice benefits them
greatly. Therefore, we should eat them.
The argument, to be more precise, is that we should eat meat where meat-eating is
part of a past and ongoing practice that benefits animals. The animals we eat should
have good lives, and their pleasures and happiness are part of that. It is an empirical
question how much of actual current meat-eating fits this description. It may be that
I am grateful for helpful and challenging comments from a referee and also for comments from Julia Driver, Simon
James, Suzi Killmister, and Rebecca Tuvel, none of whom agree with my conclusions. This paper had its origins in a
talk prepared for a number of student philosophy societies. Many thanks for questions from those in these
audiences.
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NICK ZANGWILL
only animals reared in decent ways have good lives, and that so-called
factory-farmed animals have little or no quality of life, or that their pain
outweighs their pleasure. If so, the argument from benefit to animals does not
apply to factory farm animals. Perhaps we should not eat factory-farmed animals.
Nevertheless, very many animals we eat do not live dismal lives, and the argument
clearly applies to them. For example, the millions of sheep in New Zealand that
graze outdoors overall have good lives. Therefore, we should eat them. A great
deal of meat is not factory farmed, and is, as it were, fair game. The argument
does not justify participating in practices where there is no quality in animals’
lives. However, it is not seriously questionable that much meat-eating of the more
‘free-range’ kind of animals does enable a significant quality of life for the animals
in question. It is hard to get reliable and impartial information about how much
of each kind there is, but it seems that at least around percent of actual meat
production is of the more benign sort. That justifies an awful lot of meat-eating.
When I speak of eating meat being justified in what follows, I shall mean only
meat from animals that overall have a good life. A minority of meat produced in
the world today involves such happy animals. But it is a significant minority, one
that justifies much eating of those animals.
It is a relatively uncontroversial empirical premise that if the market for meat dried
up, farmers would stop caring for animals and breeding them (Scruton ). Of
course, if human beings were radically different—perhaps if they were immaterial or
immortal or could draw nutrition from the air—then our obligations to animals
would be different. But so what? We are dealing with our world or a world like our
world. Of course, there are various barely possible utopian visions or fantasies in
which large numbers of animals somehow get cared for without being killed and
eaten. However, given the world as it is, the only way for animals to benefit in large
numbers is to kill and eat them. Therefore, we should kill and eat them.
. Consciousness, Happiness, Suffering, and Death
It seems to be obvious and intuitive that benefitting animals is good. But what if the
question is asked: why, exactly, is it good to benefit animals? What is the ground of
the obligation to benefit animals, whether individual animals or animals of a kind?
We can also benefit bacteria. But we do not think that this something we should do.
Why not?
On this point, I agree with those, such as Peter Singer (Singer ), who think
that what is important is animal consciousness. They think that animal
consciousness means we ought not to eat animals, whereas I think the very
opposite. Nevertheless, we can agree that the ground of our obligations
concerning animals is consciousness—there is something it is like to be many
animals—which is why those animals have interests that matter morally: the
quality of their consciousness can be better or worse. By contrast, bacteria have
interests; they can be benefitted or harmed, and they can flourish or not. However,
there is nothing it is like to be bacteria; they are not conscious. It is also unlikely
that there is something it is like to be an earthworm. Therefore, we do not have
obligations to bacteria and earthworms, or at least not this kind of obligation.
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Because some animals are conscious, they have interests and can flourish in a way
that matters morally. But for many kinds of animals (cows, sheep, chickens), in
order to exist and flourish in that way there must be a practice of eating them.
Therefore, we should eat them.
I do not deny that animal pain and suffering matter. However, we should insist, and
strongly so, that animal pleasure and happiness also matter—something almost
entirely overlooked by huge numbers of those who write with apparent concern for
animals. The emphasis among the defenders of so-called animal liberation or
animal rights on animal pain and suffering rather than on animal pleasure and
happiness is bizarre and disturbing (for example, Singer ; Regan ). The
only explanation I can think of is that this emphasis is a form of what is called
speciesism: animal pleasure and happiness are discounted just because they are not
of our species. There is an impressive inconsistency in this because those who
present themselves as having great concern for animals somehow omit to factor in
the benefit to animals of pleasure and happiness. This looks like speciesism because
not
they think human pleasure and happiness matters, while they do think the same of
animal pleasure and happiness, and they care only about animal pain and suffering.
It is imperative that moral issues about suffering and death are separated. There are
moral issues about the suffering and happiness of animals, and there are moral issues
about whether we can or should kill animals. These issues are clearly separate in
principle. Killing could ideally be completely painless and free of suffering. Of
course, the fact that animals feel pain and pleasure is relevant to how we should care
for them and nurture their interests during their lives, and it is also relevant to how
we should kill them. But that fact is not in itself relevant to whether we may kill
animals for food if their death is painless. These two issues are often confused. In
fact, killing animals and eating them is not merely compatible with kindness and
benefit to animals but is required if we are to be kind to animals and to benefit
them. Otherwise there would be no such animals to be kind to or to benefit. The
goal of kindness to animals dictates that we should kill and eat them.
The ideal of painless death may not be achieved in many cases. The animals we eat
may incur some pain or suffering at the end of their lives, which is regrettable.
Nevertheless, it is vastly less than the overall good in their lives. Therefore, even if
they feel pain or suffering at the end, it is not remotely plausible that pain and
suffering at the end of their lives somehow negates all the good in their lives that they
had before that. That would be a strange fetishization of their last few moments. It is
also true that many human beings have miserable painful deaths, but that hardly
means that their lives before that were not worth living. Nevertheless, we should
certainly strive to minimize animals’ pain and suffering in the process of killing them.
Some people think that how life ends matters for human beings in a way that it does
not matter for animals. If this is true, it is presumably due to our cognitive
sophistication, which allows us to conceive of our life as having something like a
narrative structure. But without that cognitive sophistication, the end of life cannot
carry the special weight it does for many people who argue that we should not eat
animals. Because animals lack the cognitive sophistication of human beings, no
special weight can attach to their last moments when considered in the light of their
lives as a totality.
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NICK ZANGWILL
Like human beings, animals have pains and miseries, but like human beings, a
great many of the animals we eat also have considerably more pleasure and
happiness in their lives than pain and misery. Therefore, we should eat them.
. Three Comments
(A) In the course of arguing that coming into existence is always (but not necessarily)
a harm for human beings, David Benetar argues for an asymmetry between pleasure
and suffering (Benetar : –). He thinks that the absence of pleasure is not
bad, whereas the absence of pain is good rather than just not bad. Benetar claims
that this is because absent pleasure must belong to some specific existing person if
it is to be regrettable, whereas this is not true of absent pain. Let us concede for
the sake of argument that Benetar has located an asymmetry here between
pleasure and pain. Even so, that does not make it plausible that the absence of
pain is a positive good rather than being neutral. Of course, conscious life without
pain may be good. In that case, lacking pain enables good things, which might
confuse us into thinking that lacking pain is itself good. But it is not good in itself.
The number also lacks pain, but there is nothing good about the number
lacking pain. The mere absence of pain is not itself good although in a living
being that is conscious, it enables good. What is in question is the value of a life,
an animal’s life considered as a totality; and there is no reason to think that this
value is constituted only by negatives, such as pains, and not at all by positives,
such as pleasures.
(B) A complication is that different animals have different degrees of
consciousness. Different animals also have different kinds of consciousness.
Consciousness varies in vividness, fine-grainedness, and so on. It is plausible that
we have greater obligations to advance the interests of animals further up the
hierarchy of consciousness. This means that we should concentrate our efforts on
breeding, killing, and eating animals with higher levels of consciousness if those
lives are good overall. Suppose there were evidence that an animal, such as a
sheep, feels more pleasure and distress than does a chicken. Then we would have
greater duties to sheep than to chickens. And if so, other things being equal, given
a choice between lamb and chicken, we should eat lamb and not chicken. (In fact,
there is evidence of the considerable ‘cognitive’ sophistication of chickens (see
Marino ). But, first, it is not clear whether or not that sophistication spills
over into their consciousness, and second, it does not affect the point of principle
concerning hierarchies of consciousness.)
(C) What about the argument that calves and their mothers incur psychological
suffering when they are separated in the process of meat production? I already
conceded that there is suffering in the lives and deaths of domesticated animals,
but I downplayed its importance in the overall balance of things. The worry is that
we cannot do this so easily with the more sophisticated emotional suffering of
animals like cows, where significant attachments develop. Nevertheless, the
important question remains: is the cow’s life as a whole good? There is no reason
to believe that the sophisticated trauma of separation in the life of a cow makes a
cow’s whole life not worth living, any more than the many traumas in the lives of
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O U R MO R A L D U T Y TO E AT M EAT
human beings make their lives not worth living. Indeed, quite the opposite: human
grief is proof that human life is worth living, despite the trauma of loss. Grief is an
eloquent testament to the value of life. The same goes for the cow’s separation
trauma. The argument runs exactly the other way from the way it is assumed
to run. If cows can grieve or suffer separation trauma, that is proof of the
sophistication and high quality of the cow’s mental life, which provides all the
more reason to eat cows as part of a practice whereby they benefit. Of course,
the grief of animals matters, and it should be factored into our assessment of the
value of their lives; the fact that they feel grief makes a difference to our behavior
with respect to animals via the practices that sustain or have sustained the quality
of life for those animals. However, animal grief speaks in favor of eating animals,
not against it.
. Beneficial Historical Practices: Wild and Domesticated Animals
The above is half of the positive argument: the appeal to the benefit to animals and
the appeal to consciousness. What needs to be added is the fact that our relationship
with domesticated animals, by contrast with wild animals, makes a significant moral
difference.
We are in ongoing symbiotic relationships with many types of animals (such as
cows, sheep, and chickens), and there are long-standing practices whereby we
benefit them and they benefit us. It is as if we were in a relationship of friendship
with them—and that is why we should eat them! We have duties to benefit our
friends in virtue of our special relationship with them; benefitting them is not
merely virtuous or praiseworthy (Zangwill , ). Likewise, in virtue of the
ongoing mutual dependency of animals on us and of us on them, it is our duty to
eat them, and this is not something merely virtuous or praiseworthy. If there turn
out to be creatures on Mars that would be benefitted by our eating them, then it
would be virtuous or praiseworthy to eat them, not our duty. We actually stand in
an ongoing relationship of mutual dependence with many earthly species, and
thus eating them is not merely virtuous or praiseworthy—we have a duty to eat
them, just as we have special duties to our friends. It is true that it is not usual to
eat our friends, and so, in this respect, the two situations are indeed different.
I concede that. But the situations are similar in that duties arise in the context of a
relationship of mutual dependence.
This marks a significant difference between domesticated and wild animals.
Consider the billions of nondomesticated animals in the wild who kill and eat
each other. These animals have pleasures and pains; does that mean that we also
have obligations to them? Should we intervene to prevent the lion from eating the
gazelle? But this aspect of these animals’ lives is an unalterable part of nature
(‘Nature red in tooth and claw’). This is not true of domesticated animals that are
mostly spared the fear of predators, thanks to human beings.
The fate of wild animals is not entirely disconnected from us. The actions of
human beings affect them. That is not the issue here—the issue is the lack of a
mutually beneficial symbiotic relationship with them. Because of that, we are not
obligated to interfere with the endless cycle of life and death in the wild. Indeed,
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NICK ZANGWILL
we should probably not interfere unless it is to undo previous wrongful intervention
(Schmidz ). By contrast, it is our duty to eat the animals we have domesticated
because we are in an ongoing relationship of mutual dependence with those
domesticated animals. Furthermore, it is a relationship that benefits the
domesticated animals. In virtue of their ongoing consciousness and its quality, the
lives of many domesticated animals are good. But that good depends on our
eating them. This is not true of the conscious lives of wild animals. Therefore, we
have a duty to eat domesticated farm animals but not wild animals.
Suppose that due to some disease the animals we have cared for and caused to
exist would have no descendants. For example, there would be no more sheep in
the future. Then we may still eat the last generation of sheep in virtue of their
participation in a practice that has benefitted those sheep and many of their
forbears. Must we eat them? Perhaps not in that situation although we may do so.
Carnivorism has been immensely beneficial to its practitioners, both human
beings and the animals they eat. If there are present duties to continue the practice,
the practice must have been beneficial: Chinese foot-binding was a long-standing
cultural practice but not a beneficial one; thus, that history confers no present
duty to persist. But carnivorism is and has been highly beneficial to both the eater
and the eaten. Therefore, that practice generates duties.
There is a question about the identity conditions of carnivorous practices. The
animals we eat should be of the same kind as the animals that were benefitted by
that practice in the past: a practice that benefits chickens cannot justify us in
eating ducks. If a carnivorous practice benefits chickens but not ducks, then that
practice generates duties to eat chickens and not ducks. It would be unfair to
chickens to eat ducks instead of chickens.
Do we have a duty to breed huge numbers of animals to feel pleasure and
happiness? No, the argument is not a consequentialist one. We have a duty to be
the gentle custodians of happy animals that we eat because of our ongoing
beneficial relationship of mutual dependence. Perhaps larger herds or flocks of
domesticated animals are better than smaller ones. But there is no requirement to
maximize. The best way to do our duty, given what the world is like, is probably
to continue a tradition of breeding, tending, and eating animals that have lives
that are good overall. New Zealand famously has ten sheep for every person.
Right now, the people of New Zealand are pursuing a morally righteous policy,
which must be almost optimal given the limits imposed by facts about human
beings, society, and economics. New Zealand farmers may or may not be
motivated by the cause of animal welfare. Irrespective of their motivations, they
have contributed and are contributing very substantially to the cause of animal
welfare, which is what matters. New Zealand sheep farming is a noble practice,
and New Zealand sheep farmers are heroic benefactors of animal kind.
The ongoing history of mutual benefit is the ground of the present moral duty of
human beings to eat animals. If the practice were beneficial only to one of the two
parties, that would perhaps not justify persisting in it. But both parties benefit—
and animals benefit a lot more than human beings. For human beings could
survive as vegetarians or vegans, but domesticated animals could not survive
human beings being vegetarians or vegans. Indeed, if most human beings became
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O U R MO R A L D U T Y TO E AT M EAT
vegetarians or vegans, it would be the greatest disaster ever for animal kind since an
asteroid strike precipitated an ice age that wiped out the dinosaurs and many other
species.
. Other Writers: Compare and Contrast
Some writers have discussed the appeal to benefit to animals, and considering their
views will help clarify some issues and locate my view more exactly. In particular,
considering these other views will allow me to highlight the specifically historical
nature of my appeal to animal benefit.
The writer nearest to my own views that I have found is Baird Callicott: in a recent
essay, he defends what he calls a ‘communitarian’ account that vindicates meat
eating in a mixed ‘biotic’ community of human beings and domesticated animals
(Callicott ). He distinguishes the communitarian view from rights and
consequentialist views in a way that seems correct, and he presents some
well-aimed criticisms of those other views. He also thinks that there is an ‘implicit
social contract’ between human beings and some domesticated animals that allows
us to kill and eat those animals (Callicott : ). Although these views seem
broadly on the right track, I think that more needs to be said. While there are
mutually beneficial practices in which human beings and animals participate, it is
not clear that they amount to ‘community’ in the sense in which people may
‘identify’ with their families, ethnicities, religions, nations, and so on. In those
cases, there are patterns of nested feelings and values that hold these communities
together. But there need be no feelings or evaluations for there to be systematic
mutual benefit, which is sufficient to generate duties in the case of human beings
and domesticated animals. Moreover, it is not clear what a ‘biotic’ community
would be. It would be very different from what communitarian moral and
political thinkers have in mind when they appeal to of families, religions,
ethnicities, and nations. It is true that these communities also generate practices of
mutual benefit among the participants. But for the practices that I have in mind as
the ground of carnivorism, it does not matter what human beings and animals
think or feel, so long as there has been an ongoing stable, beneficial practice.
Moreover, for Callicott, human beings are members of a ‘biotic’ community that
includes plants as well as animals, which also generates obligations to these
plants. However, according to the argument I am pursuing, the moral obligations
to animals arise from their consciousness.
Singer cites Henry Salt who cites Leslie Stephen who remarked: ‘The pig has a
stronger interest than anyone in the demand for bacon’ (Singer : ;
Stephen ). Singer then seems to endorse a similar view for some animals.
Singer follows Michael Tooley in distinguishing animals that are self-conscious,
that is, animals that have a conception of themselves and that have preferences
concerning their own future, from conscious but non-self-conscious animals.
According to Singer, we should not eat ------------------conscious but self-conscious animals even
if it is to their general (‘total’) benefit. The particular identity of these animals
matters; they are not replaceable by qualitatively similar self-conscious animals.
Therefore, we cannot kill and eat some to benefit others. By contrast, for Singer,
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NICK ZANGWILL
we can do this to non-self-conscious animals, which are replaceable by qualitatively
similar non-self-conscious other animals. In order to maximize their total welfare,
Singer allows that we can kill and eat some to benefit others, if the overall total
welfare is more than it would be if we did not do so. Singer’s hypothetical defense
of carnivorism is surprising, given what we might think we know of his views:
Singer thinks that we can and should kill and eat animals that lack a reflective
self-conception so long as it maximizes their happiness; that means that we can
kill and eat (well-cared-for) non-self-conscious chickens if that generates the best
consequences when compared with alternatives. I have two comments on this:
first, it is not clear how he can restrict the total good consequences to animals of
the species in question rather than taking into account all non-self-conscious
animal kind, whereas on my historical benefit view, the species restriction is built
in because the practices are species-specific. Second, Singer’s argument is a
consequentialist argument; mine is not. Singer’s consequentialism would in some
cases entail that we should renege on what I think are our historically generated
duties to a species, which hold in virtue of a past and ongoing mutually beneficial
practice. But respecting that history may not coincide with what overall future
consequences demand.
Is the view proposed here a version of the hypothetical social contract theory
(Mackie )? Perhaps it is true that animals and human beings should,
hypothetically, have contracted into the meat-eating practice given that both had
much to gain. Human beings and animals would have been right to make such a
contract because the practice would be mutually beneficial. That means that the
hypothetical contract is not fundamental. Future consequences may have been
relevant to the question of whether or not human beings and animals should,
hypothetically, have initiated a practice in the past. But this is not the situation in
which human beings find themselves now. While a past hypothetical contract
might have been justified by what then lay in the future, on the view defended
here, the present carnivorous practice is justified by the actual and
nonhypothetical past history of mutual benefit.
Jeff McMahan () considers and rejects what he calls ‘benign carnivorism’.
‘Benign carnivorism’ is the consequentialist view that eating meat is good because it
maximizes welfare for animals. In some respects, this is similar to the historical
benefit view defended here, and in some respects it is not. McMahan objects that
once an animal exists, how it got there is irrelevant history, even if it arose from an
overall benign practice that benefits its brethren (McMahan ). But dispensing
with history in this way is implausible. History is relevant—indeed crucial. Suppose
that an animal miraculously could suddenly understand, reason, and speak for an
hour before permanently losing those extraordinary temporary cognitive, rational,
and linguistic capacities. And suppose it took the opportunity to protest at its life
being cut short by being killed and eaten. We could argue in reply to the animal
that if it pleads to be treated differently from other animals, it is a selfish free rider.
It has been the beneficiary of a practice in which there is limited life with many
positive qualities. The animal who would avoid its fate therefore undermines a
practice that has benefitted it and that will continue to benefit many other animals.
The animal is in a prisoner’s dilemma. True, the dilemma is not one of its own
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O U R MO R A L D U T Y TO E AT M EAT
making. Yet, consider the payoff structure for a particular animal. (A) That animal has
an uncurtailed life while other animals have no life at all. (B) All animals have curtailed
lives (compare Callicott : ). Our miraculous animal that can temporarily
understand, reason, and speak, ought to opt for cooperation—option (B). That
would be the right thing to do. That is what it should do in the prisoner’s dilemma
in which it finds itself, just as human beings should pay taxes rather than avoid
them, not cut across lawns, and act similarly in the countless other prisoner’s
dilemmas in which human beings find themselves. It would be unfair of the animal
to escape it fate. This shows that it is not clear that McMahan can press the point
that all that matters is what is good for the animal at the point at which its death is
imminent. It surely matters how the animal got there. History matters. Such an
argument overlooks the prisoner’s dilemma structure of the animal’s situation. The
temporarily miraculously thinking, reasoning, and speaking animal should meekly
resign itself to its fate because it is the beneficiary of a benign practice that it should
not undermine. (I return to some of McMahan’s other arguments below.)
. Killing and Eating Enslaved Human Beings?
I have now laid out the main argument for eating animals—the argument from
historical beneficial practice. Let us now consider four refinements and objections:
first, the extension of the argument to human beings is dismissed; second, I ask
which animals, exactly, have benefitted and of which animals does the duty hold;
third, goodness and good-for are addressed; and fourth, I ask who, exactly, is
bound by the obligation.
There is one counterargument that has not been addressed thus far, which is likely
to have occurred to the reader. This is the argument that if the argument from historic
benefit to animals were good, it would have the consequence that we should at least
sometimes kill and eat enslaved human beings if doing so were part of a practice that
has benefitted them. This counter-argument needs to be neutralized; otherwise it will
fester unhealthily in the background and be a distraction from the main thrust of the
argument for eating meat. Addressing this objection in full would involve us in the
large issue of whether there is a moral line between human beings and animals,
and whether human beings have special rights in virtue of their rationality. These
rights would include, for example, that we cannot sacrifice one human being to
save five other human beings. These are interesting and important issues, and they
need to be pursued in depth. (I do so elsewhere in work in preparation.) But these
issues are not relevant to the substance of the argument pursued here. Perhaps the
historical benefit argument has certain consequences for eating human beings, and
perhaps it does not; perhaps those consequences would be acceptable and perhaps
not. However, even if the argument does have those consequences, it does not
affect the question of whether the argument from historical and ongoing benefit
shows that we should kill and eat animals.
In fact, my view is that there are special considerations, arising from human
rationality, that block the extension of the argument: human beings, including
many severely mentally disabled human beings, have distinctive rights that
animals lack, and this means that we cannot kill and eat enslaved human beings,
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NICK ZANGWILL
not even for their own good. The rational activity that is in play is not merely a high
state of consciousness but a self-reflective activity in which a creature reflectively
assesses its own mental life, which it changes in accordance with that
self-assessment. Rational activity is different in kind from consciousness (see
Descartes [: : ], where he grants sensations to animals, and Descartes
[: : and –], where he grants them passions).
I shall not and need not argue for a rationality view here and spell out the specific
way that a rationality view invokes rational activity and delivers rights, or consider
its scope of application (for example, encompassing severely mentally disabled
human beings). There are two points that can be made. First, even if an argument
of the sort pursued here were to yield an obligation to kill and eat enslaved human
beings, it would only be what philosophers call a pro tanto obligation, and such
an obligation might or might not be outweighed by the special rights of human
beings. Second, a crucial empirical premise of the argument advanced here for
killing and eating animals is that these kinds of animals would not exist were it
not for the practice of killing and eating them. The parallel premise is not at all
plausible for human beings. Even if, counterfactually, groups of human beings
were enslaved and eaten, it would remain true that they could survive and flourish
outside that practice. There are, of course, science-fiction scenarios (such as
H. G. Wells’s Time Machine) where such a practice is imagined as a norm, with
different empirical premises. But that is fiction, and it is hard to know the rights
and wrongs where we depart so much from actuality. At any rate, because of the
empirical fact that no group of human beings actually depends for its existence on
a meat-eating practice in which human beings are killed and eaten, it is very
unlikely that there is even a pro tanto obligation to kill and eat enslaved human
beings that needs to be outweighed. No group of human beings actually owes its
existence to cannibalistic meat-eating practices in the way that billions of animals
do owe their lives to carnivorous meat-eating practices. Therefore, we do not need
to worry about the mere possibility too much, especially because it is also
plausible that there are distinctive human rights in play that would protect human
beings in that merely possible situation.
. Which Animals?
One familiar objection to appealing to animal benefit is that it means that we have
duties at a time to creatures who do not yet exist at that time, which would be odd.
But this is not something that the historical benefit view is committed to, and such
an objection would misunderstand the view presented here as a consequentialist
one. We have duties to present existing animals, to eat them, in virtue of a past and
present mutually beneficial relationship between human beings and animals of that
kind, where animals ‘of that kind’ means animals that are the descendants of
animals that have actually benefitted from the practice. (We would owe nothing to
animals of the same species that have been casually isolated for a long time from
those that have benefitted, but this is an unlikely scenario.) The present fact that
these animals have a certain history is what imposes the obligation. True, many
future animals that do not yet exist will benefit by our eating presently existing
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animals. But our duties are to present and actual animals, to eat them, not to future or
merely possible animals that will benefit. The view is not a consequentialist one
because the grounds of duties look backward to the past, not forward to the future.
Our duties are to presently existing animals because the existing practice has
benefitted animals in the past and continues to benefit them in the present, and that
is why we should now eat the animals produced by the beneficial practice.
The duty to eat animals is like the duty to care for one’s parents in their old age.
The history of benefit matters. What our parents did for us in the past is a ground of
our later duty to them. But direct consequentialism allows that it might be fine to
bump off our parents regardless of what they have done for us. Moreover, the
rationale for respecting our parents is not an indirect consequentialist one: what
matters are not the future benefits of a general practice of caring for parents, but
the actual history of a particular parent and child pair (see Zangwill ). In a
similar way, farmers should kill and eat or allow others to kill and eat the animals
they have cared for because of what the past and ongoing present practice has
done for animals and also human beings. That history dictates a bond of loyalty
between human beings and the animals they care for, a bond much like that
between parents and children. Of course, it is not usual to eat our own parents,
and in this respect I concede that the two cases are different. However, they are
similar in that systematic historical benefit generates a bond of loyalty and duties
of care. It is just that in the case of animals, caring entails killing, unlike in the
case of one’s parents.
All currently existing domesticated animals have benefitted from the carnivorous
practice, and therefore human beings have a duty to each and every animal to see that
it plays its allotted role in the beneficial practice. We have a duty to eat animals not
just generally but to the particular animals that we eat when we eat them. And it is the
history of systematic benefit that is the ground of the duty to the particular animal,
not its current benefit or the benefit of its brethren. It is true that the act of killing and
eating an animal does not benefit that animal at the point when we kill and eat it.
However, at the very point of action, the relevant concept is justice, just as it is for
human beings when they carry out punishment in a legal setting. In the Crito,
Socrates argues that he has a duty to accept his punishment from the law of
Athens given the past benefits that he has accepted from the city (even though the
punishment is unjust). He would be acting unjustly if he avoided punishment. In
the Gorgias, Socrates connects the justice and benefit in a surprising way when (at
Gorgias a–b) Socrates expresses the surprising view that a person benefits
from being punished (Plato ). Likewise, someone might go as to far as to say
that particular animals are benefitted when they are killed and eaten. But perhaps
it is more natural to the contemporary ear to allow benefit and justice to come
apart, so that due to the history of benefit, it is just that the animal should die
even though it is not to its benefit at that point.
. Good and Good-For
Since benefit to animals plays a crucial role in my argument, albeit not a
consequentialist role, we can expect the objection that if something is good for
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NICK ZANGWILL
sheep, there must be some specific sheep that it is good for. It cannot be good for the
abstract type sheep. The reply is that the practice has been good for countless millions
of sheep. These are actually existing, particular past sheep. But what about our
continuing the practice in the present and in the future? Which sheep does that
benefit? The future sheep that it will benefit do not yet exist, so how can the
practice be good for them?
A related worry is presented by McMahan, namely, that animals that do not yet exist
have no interest in being caused to exist (McMahan : ). It is true that once a
particular animal exists, it then has an interest in continuing to exist and not being
killed and eaten. As we saw, that is the point of view of a person who betrays others
in the prisoner’s dilemma. But that reply leaves unanswered McMahan’s complaint
that no animal has an interest in its own coming into existence. This argument
threatens even the historical benefit argument, where actual and specific sheep are in
question. Nevertheless, McMahan rightly concedes that it is good for an animal to
be caused to exist (McMahan : ), but that is all that the argument requires
once we step over the following metaphysical mistake about goodness.
To put the point simply: there can be good without good-for. Once something
exists, then states of the world can affect properties of the thing and thus can be
good or bad for it. But the good of existence is not of this sort. There are, as
G. E. Moore thought, good states of the world; in that sense only are existence
facts good in relation to something (Moore ). We can distinguish ‘existence
good’ and ‘property good’. Some existence facts are intrinsic goods. For example,
the existence of a newborn healthy baby is not merely good for its parents or even
for the baby; its existence is just intrinsically good, given that it has states of
consciousness. (Whether there are nonexistence facts that are intrinsically good is
doubtful.) That there are facts of existence that are intrinsic goods is highly
plausible, and the theoretically driven attempt to deny this is deeply implausible.
Indeed, it is plausible that existence good has priority over property good because
of the metaphysical priority of existence over properties: properties must attach to
something that exists. Therefore, skepticism about existence good without
property good is implausible because there is no good-for without plain good.
(This runs contrary to Korsgaard .)
The impact of this on our discussion is as follows. The existence of conscious
happy sheep is good—a good state of the world. How could anyone deny that? It
is no problem that there is nothing that the sheep’s existence is good for. It is not
only that there are no (other) conscious beings that it is good for; existence good is
a certain kind of intrinsic good, and as such it does not have to be good for
conscious beings or for anything. Perhaps, though, we might say that the existence
of conscious happy sheep is ‘good for the world’. Those who deny that there are
existence goods are engaging in strange and unusual metaphysics, and they run
counter to common sense. (Perhaps we might also say that existence is good for a
conscious happy sheep, just as it seems that it is to my great good fortune that my
mother and father met each other at teacher training college.)
In many cases, it is good that something is good for some creature, and that good
(that something is good for the creature) is not good in a good-for way. It is an
intrinsic good. Contrast this with a scenario where all the goods are goods-for.
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O U R MO R A L D U T Y TO E AT M EAT
A goal in football might be good for a football fan who supports one team but not
good for another football fan who supports the opposing team. But these goods are
merely good-for because there is nothing good about the goal being scored or not
being scored. Good-fors that are not backed by intrinsic goods are a flimsy basis
indeed for the ethics of anything.
This view of the relation between ‘good’ and ‘good for’ has been denied.
However, the good-for-centric view is not intuitive, and those who would use it to
deny life to animals owe us a very good argument for the good-for view.
Certainly, there is no non-question-begging argument from good-for against the
historical benefit view defended here.
. Who is Obligated?
On whom, exactly, does the duty to eat meat fall? I have said that it is our duty, where
this means human beings whose forebears participated in the carnivorous practice. It
is our collective duty. In principle, that means that if enough people eat enough meat
to sustain the beneficial practice, then particular people’s obligations might lapse or
be weakened, just as a person’s duty to help a stranger in trouble lapses or weakens if
there are already enough other people helping the stranger. However, while it is good
to help sustain a beneficial practice, that is not the main reason for eating meat;
rather, the main reason is the historical one that the practice has been beneficial to
participants. We eat the animals that have benefitted out of respect for the past—a
matter of honor, if you like. This duty binds all of us although perhaps we need
not eat much meat if others are bearing more of the weight of the duty. It is like
carrying a coffin: one does it out of respect for the past, but if there are enough
pallbearers, one need not volunteer.
At the time of death, the benefit that a particular sheep has reaped is in the past.
Now is the time for this sheep to pay. But why does a particular person have a duty to
exact that payment from this sheep? Consider the following analogy. Suppose
someone commits a crime and therefore should be punished. Unless people have a
special role in the law, perhaps as prison warders, they have no special duty to
administer punishment. However, sometimes there is no such division of labor.
There might be a shared responsibility for enforcement in some jurisdictions.
Consider jurisdictions in which there is a ‘duty of rescue’ law. Suppose that
someone is drowning or suffering a crime. Then a person nearby who is aware of
the situation, a bystander, is under an obligation to the person drowning or
suffering a crime. Eating meat is, in this respect, like the duty of rescue law: a
person is duty-bound to the particular sheep being eaten.
Killing and eating animals seem to differ in this respect. The slaughtering of
animals is done by specialists, and the reason for this is that they are probably
more skilled in doing this so as to minimize suffering. Therefore, it is permissible
to delegate this duty to them. There is no such reason for the duty to eat meat,
which falls on all of us. But even in the case of slaughtering, we all have a duty to
delegate the duty.
What if some people claim to be altogether exempt from the burden imposed by
the carnivorous practice because they are vegans and do not participate in the
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NICK ZANGWILL
practice? Perhaps their parents were vegans too. Nevertheless, every vegan has
ancestors who were carnivores; indeed, their ancestors were in a meat-eating
relationship with animals for thousands of years. A modern vegan is the
beneficiary and inheritor of this ancient tradition, and is therefore duty-bound to
it and to continue to nurture the animals that depend on that practice. If vegans
do not continue the practice, they are selfish free riders, depending for their
existence on their ancestors who ate meat. Almost all modern vegans would not
exist if their ancestors had not eaten meat. Vegans depend for their existence on
their forebears who virtuously benefitted animals and who reaped benefits
themselves from the carnivorous practice. Therefore, vegans are individually
bound by the same collective duty to eat meat as the rest of us.
History is relevant, but how much history? Quite a lot. Vegans deriving from a
few generations of vegans are not absolved from duties imposed by thousands of
years of participation in the mutual beneficial carnivorous practice that the
vegans’ ancestors also participated in. However, it should be conceded that
members of an isolated culture that has a very long-standing vegan cultural
tradition stretching back a thousand years would be absolved of the duty to kill
and eat meat. Neither the present-day members of that culture nor their
immediate forebears are part of a beneficial practice that confers duties on most
other people. There might be people whose ancestors were not in a carnivorous
symbiotic relationship with animals for the past thousand years. People from such
a vegan culture who elect to eat meat would be virtuous, but doing so is not their
duty. By contrast, a modern vegan who elects to opt out of the beneficial practice
of their meat-eating forebears does wrong. Such vegans are selfish free riders who
turn their back on their responsibilities to animals in general and to the particular
animals that they fail to eat. (Hinduism and Buddhism are often wrongly thought
to be predominantly vegan cultures, but there may be sects within these religious
groups with very long-standing vegan traditions. If so, they are absolved from
carnivorous duties although they would be virtuous if they were to eat meat.)
. All Things Considered
My argument has been that the historic and continuing benefit to animals of the
practice of eating meat creates a duty to eat animals. Even so, this is not the only
duty in the world. Of course. The duty is a pro tanto duty. It may be outweighed
by other duties and obligations. But if it were not outweighed, it would amount to
an all things considered or overall duty to eat animals.
What about the rights and wrongs of eating vegetables? Like nonconscious
bacteria and earthworms, vegetables are in a different moral category from
conscious animals. There is nothing it is like to be a carrot. For this reason, we are
not under an obligation to participate in a practice that has promoted and
continues to promote the flourishing of carrots by eating them as we are under an
obligation to participate in a practice that has promoted and continues to promote
the flourishing of conscious animals. Nevertheless, eating vegetables is not morally
neutral because it bears on the fulfillment of our other obligations, such as our
obligation to eat animals. One argument would be that since eating vegetables
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O U R MO R A L D U T Y TO E AT M EAT
distracts us from our obligation to eat animals, in that respect eating vegetables is
morally wrong. We should not blithely pass over the opportunity to participate in
a practice that has benefitted conscious animals by eating them. If so, we should
ideally have a diet entirely of meat, with no vegetables at all! However, there are
reputed to be health benefits for human beings from eating vegetables. If so, then
eating vegetables helps us fulfill our obligations, such as our obligations to eat
animals. That would give us derivative moral obligations to eat vegetables.
In considering the overall moral status of meat eating, we should factor in a
variety of other things, such as the positive and negative consequences of
meat-eating practices. Perhaps there are harms to the environment caused by
farting and burping cows and sheep. This might justify us in eating sheep instead
of cows if sheep fart or burp less, or relevantly differently, from cows. However,
even if New Zealand sheep farming does cause pollution, these effects should be
balanced against the interests of sheep, and, of course, we should try to mitigate
that damage while retaining the sheep rearing.
We should not dwell only on additional negative effects. There are other positive
aspects to the practice of eating meat that reinforce the argument from the benefit to
animals from the carnivorous practice. Many other kinds of considerations also
favor eating meat. One is the gustatory pleasure of human beings when they eat
meat. We should not ignore human pleasures in eating meat (see Lomasky ).
These provide reasons that should be counted. However, those pleasures do not
have much weight compared with the duty arising from historic and present
benefit to animals. The human pleasure in eating meat is a welcome part of a
good practice.
Other kinds of considerations are aesthetic ones. There is the beauty of meat itself,
celebrated in the erotic novel Le Boucher by Alina Reyes (Reyes ). There is also
the beauty of the countryside where animals live—the beauty of the grassy fenced
hills, punctuated by grazing animals, should not be discounted. This beauty
depends on our eating meat. Of course, aesthetic considerations sometimes
conflict with moral considerations, and then we have a dilemma. Fortunately, in
the case of animals, beauty and goodness go hand in hand: aesthetic and moral
considerations point in the same direction. Aesthetic considerations provide
additional justification for eating meat although, as with human gustatory
pleasure, aesthetic considerations do not have much weight when compared with
our duty to participate in a beneficial meat-eating practice.
Effects on human welfare and rights need to be weighed carefully. The
employment that the meat-eating practice provides for millions of human beings
needs to be considered. There are also other additional effects, for example, on
other animals—wild animals for example. The calculation will be complex, and it
might turn up some surprising results. Nevertheless, considered in itself, the
meat-eating practice is clearly good, very good. Thus, it generates a very strong
pro tanto reason for human beings to participate in it. Many factors need to be
considered in arriving at an all-things-considered judgment of the value of
participating in the practice of eating meat. However, we should not assume that
these extraneous weighable factors are systematically negative. In many
discussions, authors do not merely accentuate the negative, but they eliminate the
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NICK ZANGWILL
positive (see Doggett , for an example). This bias has all the hallmarks of
conspiracy-theory reasoning. No one has ever made a convincing case that the
overall effects of the meat industry or at least of the nicer (non-factory) parts of it,
are negative. The overall assessment would have to be holistic, and it would have
to be complex, with numerous interacting factors. We have no reason to believe
that the world would be better off if human beings did not eat meat. Those who
think they know this are deceiving themselves.
There might be other good consequences of eating meat that we have not
considered here. There might also be other positive or negative moral considerations
that are not a matter of benefits or harms. However, as far as the practice of eating
meat itself is concerned, it is clear that it is good to eat meat, we ought to eat meat,
and eating meat is our duty.
. Coda
Some people do not eat meat. It could be that they put their own self-interest before
morality. Perhaps they do not like the taste, for example, or have some irrational
taboo against it, just as irrational racial prejudice leads some people not to care
about certain kinds of people or to harm them. Or it could be that they do not
care about the welfare of conscious animals because speciesism leads them not to
value a tradition that benefits those animals, in particular, speciesism causes them
to ignore animals’ pleasures and happiness. Whatever the psychological
explanation, their practice is immoral. Eating meat is good, it is what we ought to
do and our duty, and not to do so is bad and wrong. Where duty is in tension
with self-interest, we should strive to put self-interest to one side and do our duty.
Those happiness-deniers and life-deniers who have speciesist prejudices that
prevent them from eating meat should strive to rid themselves of prejudice and do
the right thing and eat meat.
Eating meat is creating life. It brings into existence beings with valuable states of
consciousness. Or at least eating meat is an essential part of a practice whereby
valuable conscious lives have been and are being created. (Recall that the
argument is restricted to animals that have good lives overall, rather than
including miserable factory-farmed animals.) This is as great a benefit as one can
confer on creatures—so excellent an act is eating animals! Did not our parents
give us a great gift, if not the greatest gift—life, existence? In a similar way, New
Zealand sheep farmers who raise sheep kindly and kill them, minimizing distress,
to make room for new generations of happy sheep are great benefactors of animal
kind. They give life and happiness. Those who eat that meat should be proud to
be part of such an excellent beneficial practice. Eating meat is an act of kindness.
Eating meat is primarily about life, not death, and it should be celebrated as such.
NICK ZANGWILL
UNIVERSITY COLLEGE LONDON
UNIVERSITY OF LINCOLN
[email protected]
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