Consensus does violence to the heterogeneity of language games. And invention is always born of dissension. Postmodern knowledge is not simply a tool of the authorities; it refines our sensitivity to differences and reinforces our ability to tolerate the incommensurable. Its principle is not the expert's homology, but the inventor's paralogy.

Jean-François Lyotard, The Postmodern Condition: A Report on Knowledge (Manchester University Press, 1984) p. xxv