When reflecting on whether and how religious faith can be justified or criticized, one must also consider which kind of rationality and which rules of thought constitute the presuppositions of such a reflection. Here the question about rationality and rules of thought must be understood as a question of a thought that is befitting human beings and the human situation. Blaise Pascal made a contribution to this question which is remarkable in the history of philosophy and which offers promising potential in the context of modern models of religious-philosophical justification.