as ¿the search for the immutable structures within which knowledge, 2 life, and culture must be contained. ¿ These ¿structures¿ do not only condition the process of knowledge, they are themselves conditioned. There is thus an unsurpassable circle in this process, a circle which German idealism brings to the surface and profoundly scrutinizes. Therefore, the task is to re? ectively account for the historical horizons in which cognition arises (being ultimately thereupon dependent), instead of searching for an ultimate Archimedean point for its deduction. Rather than searching for inexplicably transc- dental concepts, this argument points to their determination from within a given Lebenswelt. It does not renounce but rather rede? nes 3 objectivity, by seeing the subject as a coming-to-know-itself totality. 1 J. Habermas, Wahrheit und Rechtfertigung. Philosophische Aufsätze (Frankfurt a. M. : Suhrkamp, 1999), p. 186.