Isaiah Berlin, Flourishing. Letters 1928—1946, Chatto & Windus, London, 2004, s. 160. Brev till Mary Fisher, 23 mars 1936. My days have chiefly been spent in working honestly at Marx, and elaborating propositions against Logical Positivism (such as that all inductive propositions, acc. to Carnap, must be either tautologies or self-contradictions, which pleases me frightfully). […]

Karl Popper, Conjectures and Refutations, Routledge Classics, 2004, s.520: “That those experiences which we call ‘perceptions’ are interpretations – interpretations, I suggest, of the total situation in which we find ourselves when ‘perceiving’ – is an insight due to Kant. It has often been formulated, somewhat awkward, by saying that perceptions are interpretations of what […]