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taking the desires of others into account is another question
altogether. Nagel attempts this analogous argument. The role
occupied by 'seeing the present as merely one time among others'
is, in the argument for altruism, taken by 'seeing oneself as
merely one person among others'. But whereas it would be
extremely difficult for most of us to cease conceiving of ourselves
as existing over time, with the present merely one time among
others that we will live through, the way we see ourselves as
a person among others is quite different. Henry Sidgwick's observation
on this point seems to me exactly right:
It would be contrary to Common Sense to deny that the distinction
between anyone individual and any other is real and
fundamental, and that consequently T am concerned with the
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quality of my existence as an individual in a sense, fundamentally
important, in which I am not concerned with the quality of the
existence of other individuals: and this being so, I do not see
how it can be proved that this distinction is not to be taken as
fundamental in determining the ultimate end of rational action
for an individual.
So it is not only Hume's view of practical reason that stands in
the way of attempts to show that to act rationally is to act
ethically; we might succeed in overthrowing that barrier, only
to find our way blocked by the commonsense distinction between
self and others. Taken together, these are formidable
obstacles and I know of no way of overcoming them.
ETHICS AND SELF-INTEREST
If practical reasoning begins with something wanted, to show
that it is rational to act morally would involve showing that in
acting morally we achieve something we want. If, agreeing with
Sidgwick rather than Hume, we hold that it is rational to act
in our long-term interests irrespective of what we happen to
want at the present moment, we could show that it is rational
to act morally by showing that it is in our long-term interests
to do so. There have been many attempts to argue along these
lines, ever since Plato, in The Republic, portrayed Socrates as
arguing that to be virtuous is to have the different elements of
one's personality ordered in a harmonious manner. and this is
necessary for happiness. We shall look at these arguments
shortly; but first it is necessary to assess an objection to this
whole approach to 'Why should I act morally?'
People often say that to defend morality by appealing to selfinterest
is to misunderstand what ethics is all about. F. H. Bradley
stated this eloquently:
What answer can we give when the question Why should I be
Moral?, in the sense of What will it advantage Me?, is put to
us? Here we shall do well, I think, to avoid all praises of the
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pleasantness of virtue. We may believe that it transcends all
possible delights of vice, but it would be well to remember that
we desert a moral point of view, that we degrade and prostitute
virtue, when to those who do not love her for herself we bring
ourselves to recommend her for the sake of her pleasures.
In other words, we can never get people to act morally by
providing reasons of self-interest. because if they accept what
we say and act on the reasons given, they will only be acting
self-interestedly, not morally.
One reply to this objection would be that the substance of
the action, what is actually done, is more important than the
motive. People might give money to famine relief because their
friends will think better of them, or they might give the same
amount because they think it their duty. Those saved from starvation
by the gift will benefit to the same extent either way.
This is true but crude. It can be made more sophisticated if
it is combined with an appropriate account of the nature and
\ function of ethics. Ethics, though not consciously created, is a
product of social life that has the function of promoting values
common to the members of the society. Ethical judgments do
this by praising and encouraging actions in accordance with
these values. Ethical judgments are concerned with motives
because this is a good indication of the tendency of an action
to promote good or evil, but also because it is here that praise
and blame may be effective in altering the tendency of a person's
actions. Conscientiousness (that is, acting for the sake of doing
what is right) is a particularly useful motive, from the community's
point of view. People who are conscientious will, if
they accept the values of their society (and if most people did
not accept these values they would not be the values of the
society) always tend to promote what the society values. They
may have no generous or sympathetic inclinations, but if they
think it their duty to give famine relief. they will do so. Moreover,
those motivated by the desire to do what is right can be
relied upon to act as they think right in all circumstances,
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whereas those who act from some other motive, like selfinterest,
will only do what they think right when they believe
it will also be in their interest. Conscientiousness is thus a kind
of multipurpose gap-filler that can be used to motivate people
towards whatever is valued, even if the natural virtues normally
associated with action in accordance with those values (generosity,
sympathy, honesty, tolerance, humility, and so on) are
lacking. (This needs some qualification: a conscientious mother
may provide as well for her children as a mother who loves
them, but she cannot love them because it is the right thing to
do. Sometimes conscientiousness is a poor substitute for the real
thing.)
On this view of ethics it is still results, not motives, that really