Coady, C.A.J. - Testimony: A Philosophical Study

It will be useful to begin by distinguishing between negative and positive epistemology. Negative epistemology is concerned with theoretical problems posed by the challenge of radical or philosophical scepticism in its various forms; positive epistemology takes it that the challenge of scepticism is somehow overcome, or sidetracked, and proceeds to investigate the structure (or absence of structure) to be found in human knowledge or in that body of belief which can, scepticism aside, lay reasonable claim to that title.