Habermas on Quine

"Strong naturalism, whose paradigmatic representative has been W. V. Quine, allies itself with a scientific understanding of our cognitive abilities. All cognition is ultimately reducible to empirical processes. The transcendental architectonic drops out, as does the difference between the conditions of how world is constituted (or of world disclosure), which calls for conceptual analysis, on the one hand, and states of affairs and events in the world, which can be explained causally, on the other. If we repudiate the transcendental difference between the world and what is innerworldly, then we also get rid of the assumption that it is necessary for governing scepticism about a "world of appearances," which might represent a partial segment or a prospectively distorted view of a "world in itself." And as the methodological dualism of an interpretive reconstruction of our lifeworld, on the one hand, and the explanation of processes in the objective world, on the other, dissipates, so does the paradoxical task of somehow reconciling the "internal perspective" of transcendentally conceived practice of lifeworld with the "external perspective" of their causal genesis."

Truth and Justification p. 23

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