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§3. The Constructivist Procedure
fact of reason. So we look at how Kant seems to reason when he presents
his various examples, and we try to lay out in procedural form all the conditions he seems to rely on. Our aim in doing this is to incorporate into that
procedure all the relevant criteria of practical reason, so that the judgments
that result from a correct use of the procedure are themselves correct (given
the requisite true beliefs about the social world). These judgments are correct because they meet all the requirements of practical reason, both pure
Third, what more exactly does it mean to say, as I said a while back,
that the form and structure of the CI-procedure mirrors our free moral
personality as both reasonable and rational? The idea here is that not everything can be constructed. Every construction has a basis, certain materials,
as it were, from which it begins. While the CI-procedure is not, as noted
above, constructed but laid out, it does have a basis: the conception of free
and equal persons as reasonable and rational, a conception that is mirrored
in the procedure.
We discern how persons are mirrored in the procedure by noting what
powers and abilities, what kinds of beliefs and wants, and the like, they
must have as agents who are viewed as implicitly guided by the procedure
and as being moved to conform to the particular categorical imperatives it
authenticates. We look at the procedure as laid out and we consider the
use Kant makes of it, and from that we elaborate what his conception of
persons must be. This conception, along with the conception of a society
of such persons, each of whom can be a legislative member of a realm of
ends, constitutes the basis of Kant’s constructivism.
Thus we don’t say that the conceptions of person and society are constructed. It is unclear what that could mean. Nor do we say they are laid
out. Rather, these conceptions are elicited from our moral experience and
reﬂection and from what is involved in our being able to work through
the CI-procedure and to act from the moral law as it applies to us.
. To illustrate: that we are both reasonable and rational is mirrored in
the fact that the CI-procedure involves both forms of reasoning. We are
said to be rational at step (), and indeed at all steps, since the deliberations
of agents within the constraints of the procedure always fall under the rational. We are also said to be reasonable, since if we weren’t moved by the
reasonable, we would not take what Kant calls a pure practical interest in
checking our maxims against the procedure’s requirements, nor when a
maxim is rejected would we have such an interest in revising our intentions
and checking whether our revised maxim is acceptable. The deliberations
of agents within the steps of the procedure and subject to its reasonable
constraints mirror our rationality; our motivation as persons in caring about
those constraints and taking an interest in acting in ways that meet the
procedure’s requirements mirrors our being reasonable.
The conception of free and equal persons as reasonable and rational is
the basis of the construction: unless this conception and the powers of moral
personality it includes—our humanity—are animated, as it were, in human
beings, the moral law would have no basis in the world. Recall here Kant’s
thought that to commit suicide is to root out the existence of morality from
the world (MdS :f.).
Note here—what is perhaps obvious—that not only does the CIprocedure exhibit the principles of practical reason, both reasonable and
rational, but also its form and structure are drawn from the conceptions
of person and of the public role of moral precepts within what Kant calls
the systematic whole of ends of a realm of ends. It is the union of the
principles of practical reason with those conceptions that shapes the procedure’s form and structure. The principles of practical reason, both the reasonable, as exhibited in the conditions imposed on the agents going through
the CI-procedure, and the rational, as exhibited in their ways of reasoning,
select the precepts of morality.
§. An Observation and an Objection
. The observation about constructivism concerns the relation of priority
between the order of moral values and the conceptions implicit in our practical reason. By contrast with rational intuitionism, constructivism sees the
substantive principles that express the order of moral values as constructed
by a procedure the form and structure of which are taken from the conceptions and principles implicit in our practical reasoning. As already stated,
the union of practical reason with conceptions of society and person is complete and independent. For moral purposes, this union needs no grounding,
and the principles of practical reason rely on nothing prior to it.
Another way to state the relation of priority is to say that it concerns
the order of explanation.5 Rational intuitionism says: the procedure is correct because following it correctly usually gives the correct (independently
given) result. Constructivism says: the result is correct because it issues
from the correct reasonable and rational procedure correctly followed.6
Both views use as the fundamental criterion what we think on due reﬂection. Our judgment as to the correct view of moral or political reasoning
depends on which seems soundest after full consideration and judgment.7
Both ways of stating the contrast between moral constructivism and intuitionism are right and come to the same thing: the ﬁrst, we might say, is
more vivid; the second is clearer and more rigorous.
. The objection to constructivism is this: what we think on due reﬂection is itself something prior to and independent of practical reason and
the conceptions of person and society.8 After all, we revise our formulation
of a constructivist procedure according to whether its ideas, procedures,
and principles yield judgments that ﬁt with our convictions after full consideration. But surely, the objection continues, these convictions, whether general or more particular, are intuitions! So why isn’t constructivism simply
a form of intuitionism?
In reply, both constructivism and intuitionism must rely on due reﬂection. Otherwise, constructivism cannot check its formulation of the correct
procedure. The contrast with intuitionism lies in the order of explanation:
in whether we say the judgment is correct because it followed a procedure
that usually gives the correct result determined independently, or whether
we say, as in constructivism, that the judgment is correct because it issues
5. This way of putting it was suggested to me by Thomas Nagel.
6. To illustrate the contrast thus stated, the following statement of Christine Korsgaard: “The
point I want to emphasize here is that the Kantian approach frees us from assessing the rationality
of choice by means of the apparently ontological task of assessing the thing chosen: we do not
need to identify especially rational ends. Instead, it is the reasoning that goes into the choice itself—
the procedures of full justiﬁcation—that determines the rationality of the choice and so certiﬁes
the goodness of the object. Thus, the goodness of rationally chosen ends is a matter of the demands
of practical reason rather than of ontology.” From “Two Distinctions of Goodness,” Philosophical
Review (April ), ; reprinted in Creating the Kingdom of Ends (Cambridge: Cambridge University
7. This means that, as reasonable and rational, the best criterion we have at any given moment
of whether a conception of right and justice applies to us is whether it is the one most acceptable
to us on due reﬂection.
8. I am indebted to Gregory Kavka and David Estlund for discussion on this point.
from what we think on reﬂection is the correct procedure of practical reason
correctly followed and using only true premises.
As to how we ﬁnd the correct procedure, constructivism says: by reﬂection, using our power of reason. It also says that neither theoretical nor
practical reason is transparent to itself. We can misdescribe our reason as
we can misdescribe anything else. This may lead us to think that there is
some moral order prior to and independent of reason that we are trying
to describe. Constructivism does not deny that it may seem so, but it says
that we are really using our reason to describe itself. This is a struggle, for
the task of coming to understand what to think on full consideration continues indeﬁnitely.
Moreover, the principles of practical reason and our conceptions of
person and society (that is, of the realm of ends) are united in practical
reason. These conceptions do not stand alone and as such constitute the
basic moral truths. In various ways, the formulation of our conceptions of
practical reason and of person and society depends on beliefs of all kinds.
Constructivism says that when, if ever, due reﬂection is achieved, and our
principles and ideals along with our other beliefs about society, person, and
world are in line, then our moral conception will have a certain structure
in which the requirements of the principles of practical reason (as represented in an appropriate procedure) have a certain role in determining its
As to whether our general and high-level convictions about practical
reason are intuitions, as some say, they may of course be called that. However, as I have said, constructivism views these so-called intuitions not as
convictions about an independent order of moral values, but as convictions
about practical reason itself, about its principles and its ideas of reason.
§. Two Conceptions of Objectivity
. It is important to see that the contrast between rational intuitionism and
Kant’s moral constructivism is not a contrast between objectivism and subjectivism. Both views have a conception of objectivity, but each understands
objectivity in a different way.
In rational intuitionism, a correct moral judgment, or principle, is one