ABSTRACT
This chapter discusses free will as it appears in the Treatise and the first Enquiry. I argue that from these passages it is possible to reconstruct three perspectives on human action, i.e. of introspection, participation, and observation. They are present in both works but with different emphases in accordance with the general projects of the two works. In the Treatise, the will is discussed along with the passions, and the discussion there is focused on the phenomenology of the will and necessity as perceived in common ways of acting. In the Enquiry, the same problems are discussed, along with those of understanding, and the focus is placed on reasoning and inferences in moral matters.
