Every action we take is predicated on belief, because every action we take is preceded by an evaluation of the context.
The mere use of an object, however implicit the action, is predicated on belief. We notice this when the functionality of the object suddenly no longer corresponds to expectations - indignation, stupefaction, anger or laughter take possession of us, and this indicates that there was an implicit expectation and therefore a belief, too.
We expect reality to match the beliefs we project onto it because we know this from previous experience.
Expectation is the hope that results from belief acquired as a result of direct prior experience.
We expect the door to open because we have acquired the belief that it will open on the first try.
The fact that we are beings aware of the existence of the future implies the existence of free will. Without its existence we would not be able to align ourselves with novelty and even if our reaction to the unexpected is implicit, this does not mean that at the moment we acquired that reflex, it did not have the initial freedom of choice attached to it.
Without free will, reason becomes useless, because thought is the extension of the faith, the faith in the good contained in the future.
Reason allows us to virtually evaluate the unknown in the sense of our orientation towards what is the object of the value system to which we relate.
Hope is the optimal relationship with the future and is manifested through faith.
We cannot be unbelievers because, being aware of the future, we always live with the hope of the potential good contained in it, and reason allows us to evaluate and decide accordingly.