This paper traces the borders between presupposing, believing, and having faith. These three attitudes are often equated and confused in the contemporary image of the historically and culturally situated character of rationality. This confusion is problematic because, on the one hand, it prevents us from fully appreciating the way in which this image of rationality points towards a dissolving of the opposition between faith and reason; on the other hand, it leads to forms of fideism. After bringing this differentiation into (...) sharper focus, a concept of faith in turn will come into view which challenges contemporary forms of fideism, to the extent that it embraces the possibility of examining and evaluating our systems of beliefs and basic presuppositions. This examination has nothing to do with justification or verification but rather with a sort of confrontation and discernment of the trust we have in what we take for granted. (shrink)