Page "David Hume" Paragraph 31

Many commentators have since rejected this understanding of Humean empiricism, stressing an epistemological, rather than a semantic reading of his project.

According to this view, Hume's empiricism consisted in the idea that it is our knowledge, and not our ability to conceive, that is restricted to what can be experienced.

To be sure, Hume thought that we can form beliefs about that which extends beyond any possible experience, through the operation of faculties such as custom and the imagination, but he was skeptical about claims to knowledge on this basis.