Williams on Objectivity in Science and in Ethics
The Germ of Truth in the
Fact-Value Distinction
"The
basic difference [between science and ethics] lies rather in our reflective
understanding of the best hopes we could coherently entertain for eliminating
disagreement in the two areas"(135).
Even if there were
convergence, what would be the best explanation of it? The answer would be different for ethics than
for science.
The Absolute Conception of
the World
In science, convergence on an
answer would be explained in terms of how things are. In ethics, there is no such coherent hope.
The absolute conception of the world is "a conception of the world
that might be arrived at by any investigators, even if they were very different
from us"(139).
The absolute conception makes
sense in science, but not in ethics.
Convergence in Ethics
There can be convergence on thick ethical concepts, such as coward,
lie, brutality, gratitude, etc. These
concepts are both world-guided and action-guiding.
The prescriptivist
account requires that such concepts be divisible into a descriptive and
prescriptive element. Why does Williams
think this is not always possible?
How Reflection Destroys Ethical
Knowledge
The example of the hypertraditional society
Key question: "Must we agree that there is a judgment,
to be expressed by using some universal moral notion [such as right or wrong], which they accept and the observer may very well
reject?"(545)
Key issue: the relation between practice and reflection
The Objectivist and the Nonobjectivist Model
Inquiry
into moral truth vs. a way of living.
On the nonobjectivist
model, the members of HS have ethical knowledge; on the objectivist model they
do not.
Can there be reflective ethical
knowledge? Williams's answer is no.
In ethics, "reflection can destroy knowledge"(148).
On reflection, we could
provide a social scientific explanation of our moral beliefs. Such a theory could never justify our moral
beliefs.
“Companions in Guilt”:
What is the contrast with secondary qualities, such as
“yellow”?
What about mathematics?
What prevents us from having
reflective ethical knowledge: Some
account of what "tracking the truth" would be—that is, some
explanation of how "a range of investigators could rationally, reasonably,
and unconstrainedly come to converge on a determinate
set of ethical conclusions"(151).
[Note how similar Williams's
argument is to Harman's.]
Williams thinks that the only
coherent hope for an "objective" ethics is to ground ethical truth in
truths about human nature.
Is there an alternative?
Dworkin's Defense of Objectivity in Ethics
archimedean
(external) vs. internal skepticism
Archimedean skepticism is,
supposedly, austere and neutral. What do
these terms mean?
Internal skepticism about
morality: Involves commitment to some
moral truths (perhaps conditional or counterfactual).
I-Propositions: Make moral judgments internal to a moral
practice.
E-Propositions: Express external metaphysical or
philosophical opinions about the nature of internal moral judgments.
Can we divide moral discourse
into I-Propositions and E-Propositions?
The Return of Harman:
Can moral properties cause
moral beliefs?
What is the point of Dworkin's moral field thesis ("morons") example?
The key argument: That we must be "in touch with"
moral properties (117). Compare
Williams's idea that for reflective moral knowledge, our moral beliefs must
"track the truth".
Dworkin’s mistake about Platonism: It is not only a theory of the existence of
moral truths but a theory of how we are sensitive to them.
Dworkin's test of reflective equilibrium:
"Let us accept, for the
sake of the argument, that we are forced to choose between the following two
propositions. (1) Human beings have a
special though sometimes fallible faculty of judgment that enables us to decide
which moral claims to accept or reject, a capacity whose
malfunctioning may sometimes result only in moral misjudgment with no spillover
impairment of any other cognitive activity.
(2) There is no moral objection to exterminating an ethnic group or
enslaving a race or torturing a young child, just for fun, in front of its
captive mother. Which should we
abandon?"(117-118)
Dworkin's Key Move: The Super-Duper
Companions in Guilt Defense
The
generalization of the argument to all of philosophy.
"Since we do not think
that philosophical opinions are caused by philosophical facts, we do not
conclude from the diversity of philosophical views (which is more pronounced
than moral disagreement) that no positive philosophical thesis is
sound"(113-114).
“If the ‘best explanation’
causal test is universally sound, therefore, no moral (or aesthetic or
mathematical or philosophical) belief is reliable”(119).
"The
Archimedean employs his own autonomous philosophical capacity to declare that
no intellectual capacity can sensibly be treated as autonomous"(122).
Talbott’s
Response to the Naturalist’s Challenge:
Sensitivity to Objective Moral Standards without Causal Interaction with
Them
I. The Naturalist’s Challenge:
If human beings are the
product of blind processes of biological and social evolution, how could human
beings have acquired sensitivity to strictly universal, objective moral standards
as a result of such blind processes.
II. Two Kinds of Moral Sensitivity
A. Tracking Sensitivity.
(Ruse and E.O. Wilson’s
Tracking Test) If S’s moral belief that p had not been true because there were
no objective moral standards, S would not believe that p.
B. Probabilistic Sensitivity:
(NC) EmpProb(x
is true//x is a substantive moral proposition about a particular case believed
as a result of causal history BE&SE) ≈ 0.
(MR) EmpProb(x is true//x is a
substantive moral proposition about a particular case believed as a result of
causal history BE&SE) > ½.
III. Probabilistic Sensitivity to Objective
Moral Standards without Causal Interaction:
The Benign Correlation.
A. Selection for satisficing and willingness to
cooperate in egalitarian (or equitable) solutions gene propagation collective
action problems.
B. Moral practices are solutions to collective
action problems.
C. The objective moral standards favor moral
practices that are equitable solutions to collective action problems.
D. The Benign Correlation. By selecting for A, the processes of natural
and social selection have produced selection of sensitivity to C.
IV. Aristotle’s Practical Wisdom as Probabilistic
Sensitivity and Responsiveness.
In a choice among the
relevant alternatives A1, . . . , An, in which subject
S believes that Ai is the right thing to do:
(Tracking Sensitivity Condition
for Practical Wisdom) If act Ai had not been ranked above the other relevant
alternatives by the objective moral standards, S would not have believed that
it was the morally right thing to do.
(Probabilistic Sensitivity Condition for Practical Wisdom) If S
believes that Ai is the right thing to do, then it is probable that the
objective moral standards rank Ai above the other relevant alternatives.