title: Imputing intentionality: Popper, demarcation and Darwin, Freud and Marx.
authors.forename: S
authors.initials: S
authors.lastname: Yearley
mesh_terms: D005858:Germany; D049711:History, Modern 1601-; D010684:Philosophy / Q000266:history*; D012586:Science / Q000266:history*; D006113:United Kingdom