In essence we are dealing here with a dual shift, first from the image of knowledge as a superstructure progressively erected on the basis of sure and certain, discretely verifiable foundations and to the image of knowledge — particularly associated with Willard van Orman Quine — as a complex, flexible, context-specific web.5 Second, we are dealing with the shift from viewing truth purely in terms of cognitive understanding and linguistic and conceptual articulation alone to recognizing the need to view truth also in performative terms of efficacy and fruitfulness, and this not just as a means
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