1. M. Cooke, Language and Reason (Cambridge, Mass.: MIT Press, 1994).
2. J. Habermas, Wahrheit und Rechtfertigung (Frankfurt am Main: Suhrkamp, 1999), p. 7 (henceforth WR). As my discussion makes clear, I take him to mean a 'metotheoretical perspective'.
3. Habermas associates himself with what he sees as the basic impulse of Hilary Putnam's Kantian pragmatism: the transcendental fact that subjects capable of speech and action can learn. He stipulates, however, that this fact has to be given a postmetaphysical interpretation. WR, p. 16.
4. J. Habermas, Communication and the Evolution of Society, trans. T. McCarthy (London: Heinemann, 1979).
5. J. Habermas, The Theory of Communicative Action, vols 1 and 2, trans. T. McCarthy (Boston: Beacon Press, 1984, 1987).