 Once a principle along these lines has been chosen, the relative strictness of a given Evidentialist position will be a function of how many exceptions it allows. The strictest sort of Evidentialist—Clifford, at least on standard readings—says that the principle holds “always, everywhere, and for anyone” (though note, again, that Clifford himself qualifies this later in his essay). There are problems with such a strict position, however, including the threat of the infinite regress that arises if the strict Evidentialist also requires that we believe that we have sufficient evidence for all of our beliefs.