The cornerstone of the radical program of positivism was the separation of science from metaphysics. In the good old days, the solution to this demarca- tion problem was seen as a way of separating sheep from goats - ynthetic or analytic propositions, which were candidates for truth or falsity, either on empirical or formal grounds, on the one hand; and, on the other hand, those deceptive propositions which appeared to be truth claims, but were instead either meaningless, or nonsensical, or poetical, or merely expressive - i.e. without proper cognitive content and hence not verifiable or...