As Williams observes, any view of this Davidsonian kind has to overcome an obvious problem. We can have reasons which do not motivate us to act (e.g. if we are unaware of them), and we can act in ways for which we lack any actual practical reasons (e.g. if we are mistaken about what our reasons are). Identifying an agent’s practical reasons, it seems, neither entails nor is entailed by giving an explanation of her actions. On this reading, Williams suggests that this problem arises simply due to