The standard conception is not committed to a particular account of what it is to act intentionally and for reasons, and it is not committed to a particular account of the nature of reason explanations. It is important to distinguish the standard conception from the standard theory, which provides a causal account of intentional action and reason explanation. This theory says, very roughly, that something is an intentional action and done for reasons just in case it is caused by the right mental states and events in the right way. The right mental states and events are states and events that rationalize the action from the agent’s point of view (such as desires, beliefs, and intentions). The right way of causation is non-deviant causation (see section 3.2). On this view, a reason explanation is an explanation in terms of mental states and events that cause the action and that rationalize it from the agent’s point of view (typically by providing a means-end rationale). This theory is often called “the causal theory of action”. Strictly speaking, it is an event-causal theory and it consists of an event-causal theory of reason explanation and an event-causal theory of intentional action. In conjunction with the standard conception, this causal theory provides us with a theory of action, which has been the standard theory in the contemporary philosophy of mind and action (see also the entry on action).