How Correct is Hume on the Is-Ought Problem?
Francis O. C. Njoku
Abstract
David Hume accuses the natural law tradition of Aristotle and Aquinas of deriving ought-statements from
is-statements. However the claim that no set of descriptive statements can be entailed by prescriptive ones
has not only shown that Hume misread the tradition but also missed a lot about the operation of human
consciousness. Hume seems to have been very deficient on two major counts: an inability to recognise that
reason is a great actor in judging human action; and the fact that he missed to observe that human beings
operate at four different levels of consciousness – the experiential, the epistemological, and the
metaphysical levels, and the level of intentional consciousness. And the questions raised at the fourth level
are still part of the operation of human consciousness or intelligence asking different questions at a level
that is preparatory for action. Furthermore, Hume, within the empiricist tradition, fails to realise there
are descriptive statements that are logically related to evaluative ones albeit they need not contain the
word is. He totally forgot a different kind descriptive statement that appeals to institutional facts. Those
statements that presuppose institutions for their full meaning must be accounted for accordingly because
if their institutions are taken away, only brute facts are left.