you can do whatever you want without even approaching a conscious belief But how do you determine what you want to do? In order to act, you must first be able to evaluate which action is preferred in any given moment. That implies you have: A worldview through which you perceive the likely outcomes of your possible actions. And An underlying value set through which you parse the relative desirability of those outcomes. Yes, these evaluations can happen at the 'gut', or subconscious level, but your ​beliefs will shape both your worldview​​ and values nonetheless.