 Whereas knowledge of others’ sensations, emotions, and intentional states demands reliance on independently articulatable grounds, self-knowledge is, by contrast, characteristically immediate. This immediacy is already enough to be philosophically perplexing, but not only do we know differently from others what we think, hope, and feel, we are also, in normal circumstances, regarded as knowing best. Furthermore, if we do enjoy certain mental attributes, we are expected to know that we do: our mental states are salient to us. According to the editors, “[t]hese three features of the epistemology of self-knowledge—immediacy, authority, and salience—combine to set a certain explanatory problem …”.