 In articles such as “Mental Events and the Brain” (1963), Paul Feyerabend explicitly endorsed the idea that common-sense psychology might prove to be radically false. Indeed, Feyerabend held that practically any version of materialism would severely undermine common-sense psychology. Like many of his contemporaries, Feyerabend argued that common-sense mental notions are essentially non-physical in character. Thus, for him, any form of physicalism would entail that there are no mental processes or states as understood by common-sense (1963, p. 295).