pseudo-Metaphysical claims of Positivism acc. to Collingwood

• EM 143: Its central doctrine was that the only valid method of attaining knowledge is the method used in the natural sciences, and hence that no kind of knowledge is genuine unless it either is natural science or resembles natural science in method. 
• EM 154: the first principle of positivistic metaphysics, the principle that all the presuppositions we can detect underlying our thought must be justified, and justified by an appeal to observed facts.
• EM: 147: What is in fact a presupposition they misunderstood as a general proposition about matters of fact, advanced upon credit and awaiting verification
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