2Habermas, J. , Communication and Evolution of Society , Boston Press ,1979.19.
3Karl - Otto Apel: Openly strategic use of language: a transcendental - pragmatic perspective ( a second attempt to think with Habermas againt Habermas ), in Habermas : A Critical Reader, Edited by Peter · Dews ( Malden, Mass : Blackwell Publishers Ltd, 1999 ), p. 287, p. 288, p. 288, p. 289.