CONCLUSION 277
pluralists and how this pluralism is related to their commitment to a
universal morality. This suggests a second and more complex form of
incommensurability in their moral and political thought. Not only is it
impossible to compare and rank peoples as whole entities, but a variety of
specific institutions, practices, and beliefs are also not amenable to such
judgements for there are no cross-cultural norms (or universal scales of
value) with which (or along which) they could be compared and judged.
As I have noted, understandings of the dominant patterns of land use,
property relations, and the primary means of subsistence in a society
played a crucial role in many modern debates about imperialism; seden-
tary agricultural societies in particular were viewed as radically distinct
from societies that were nomadic and whose subsistence was based upon
hunting, fishing, and herding. For many imperialist thinkers (for instance,
international jurists such as Grotius and Vattel), an agriculturally based
society constituted the prerequisite for a basic moral order; hence, pre-
agricultural societies were thought to lack a moral and political status
equal to that of European states on the stage of international politics.
Moreover, from this perspective, given imperialists’ frequent appropria-
tions of Locke’s account of property, not only do New World peoples
thereby lack a sovereign status, but they also lack title to the lands that
they were said to inhabit wastefully. According to Diderot, Kant, and
Herder, however, these are precisely the kinds of cross-cultural judge-
ments that one cannot make, for there are no cross-cultural standards
with which one could make universal judgements about the superiority
or inferiority of the diverse land-use practices that, in part, were seen to
differentiate European from most non-European peoples.
Judgements, then, that nomadic lifestyles are not manifestly inferior to
sedentary forms of life, and that many ways of life and understandings of
value cannot be rank ordered, inform Enlightenment anti-imperialism.
Yet, while a deep sense of moral incommensurability pervades Diderot,
Kant, and Herder’s political thinking, so too does a strong commitment
to moral universalism. For all of them, the two are closely related, for the
qualities that fundamentally characterize humanity and that deserve uni-
versal respect, in their view, are among the key sources of cultural differ-
entiation, much of which lies beyond the purview of universal judge-
ments. Diderot, Kant, and Herder distinguished between norms, practices,
and institutions that, they argue, clearly violate human dignity and free-
dom, such as slavery, serfdom, imperialism, and the Indian caste system,
and those that cannot and should not be judged according to such cross-
cultural concepts, in part, because such judgements themselves violate
humanity. To use the terminology that I have adopted in this book, the
distinction here concerns when cultural agency ought to be respected
morally and politically and when specific uses of cultural agency, as with