  A possible response to this line of thought would be to point out that typically a person can think of a justification for her justified beliefs, even for cases where one's justified beliefs and their respective justifiers have been stored in the mind for a long time. Consider again the case of one's justified belief that Illinois was Lincoln's home state. For most people this belief is justified, but hardly ever occurrent, and neither are its justifiers. On an occasion when the belief is occurrent one may be able to supply a justification for it. For instance one might note that one must have learned this fact in elementary school, and that one had entertained this fact on earlier occasions since the belief was first acquired. These are thoughts one has on the present occasion and so are mental states; and they are items of awareness and thus accessible to reflective awareness. So even when the justifiers that are mental states are not directly accessible, we might think, some justifiers are always available to reflection, because we can think of what would serve to justify current beliefs. So mentalism does after all entail accessibility, because one can always provide or think of a justification.