One fairly specific understanding of the priority of knowledge is the idea that instead of trying to explain knowledge in terms of belief plus truth, justification, and something, we should explain belief in terms of knowledge. This is to reverse the usual explanatory priority of knowledge and belief. This fairly specific idea generalizes in two directions. (1) Perhaps we should explain other notions in terms of knowledge as well. Some possibilities include assertion, justification or evidence, mental content, and intentional action. (2) Perhaps we could explain other relatively internal states like intentions, attempts, and appearances in terms of their more obviously external counterparts: intentional action and perception.

That knowledge is prior to belief has historically been a minority opinion. The idea that a belief, and the mind more generally, is what it is regardless of any actual connection to the external world is still...