and at a certain point he may have come to acknowledge two conclusions: the first is that his new forms of understanding may themselves in turn come to be put in question at any time; the second is that, because in such crises the criteria of truth, intelligibility, and rationality may always themselves be put in question—as they are in Hamlet—we are never in a position to claim that now we possess the truth or now we are fully rational. The most that we can claim is that this is the best account