In explaining human actions, scholars and laypeople alike employ explanatory devices such as ‘motives’. This paper critically reevaluates the relationship between ‘professional’ and ‘lay’ invocations of motive, proposing a general reorientation of theory and research. This reorientation emphasizes the mundane ‘practical grammar’ of motives, and argues that motive deployment is inextricably tied to deviance, and therefore irremediably moral. It is argued, therefore, that motives should serve as a topic for scholarship, not a resourcefor scholarly use. Several landmark theories of motives, deviance, and explanations are critically reviewed from the proposed vantage. Finally, a brief survey of similarly-minded work is offered, focussing on eth...