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In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

adoption of this person's metaphysics by Alexander Bogdanov led Vladimir Lenin to write a chapter in Materialism and Empirico-Criticism accusing this philosopher and Richard Avenarius of being solipsists. His anti-atomism was rooted in a skepticism about unobservable entities, while his general philosophy of science proposed that theories develop from a human drive toward economy. The strict empiricism exhibited in his history of physics, The Science of Mechanics, was extended to giving sense-perception the sole role in driving science in his The Analysis of Sensations. His empiricist approach influenced the formation of the Vienna Circle, which was formally known as this man's "society. " For 10 points, name this philosopher, who also worked as a psychologist, explaining an optical illusion known as his "bands," and a physicist, doing work on the speed of sound that included defining his "number. "
Output:
Social Science