There "is" no contradiction between saying that an action is governed by physical laws and saying that the same action is governed by principles of reasoning. The motives of observable actions are "" and "dispositions"; these explain why behaviors occur, and not some purely mental process. For example, the disposition to want or not to want something is not explained by an intellectual motive for that thing. The disposition to want something is explained by "the behaviors that are involved" in wanting that thing. Thus, the mind does consist of abilities and dispositions that do explain behaviors, for example the learning, remembering, knowing, feeling, or willing behaviors. However, personal abilities and dispositions are not the same as mental processes or events. To refer to abilities or dispositions as if they were purely mental occurrences is to make a basic kind of category-mistake.