 Empiricism's "fallacy" is that "of propounding a theory of knowledge from which, if it is true, the theorist himself must be exempt, and which, if it applies to the theorist himself, must be false".Nor is empiricism able successfully to overcome the logical antinomies infecting the inductive method, by which it usually tries to explain and justify the genesis and validity of the universal form of scientific theories.Finally, Harris argued that the hypothetico-deductive method, which some empiricists such as Sir Karl Popper employ in order to overcome the shortcomings of the inductive method, is epistemologically unfruitful, owing to its merely analytic and conjectural nature.