"There are still harmless self-observers who believe that there are 'immediate certainties'; for example, 'I think', or as the superstition of Schopenhauer put it, 'I will'; as though knowledge here got hold of its object purely and nakedly as 'the thing in itself', without any falsification on the part of either the subject or object. but that 'immediate certainty', as well as 'absolute knowledge' and the 'thing in itself', involve a 'contradictio in adjectio' (contradiction between the noun and the adjective). i shall repeat a hundred times; we really ought to free ourselves from the seduction of words!"