In this essay Deleuze's concept of intensity is placed into the context of the problem of accounting for the relationship between sense perception and our conceptual categories. By developing the manner in which Kant responds to Hume's critique of metaphysics, this essay shows how Deleuze develops a Humean line of thought whereby the heterogeneous as heterogeneous is embraced rather than, as is done in Kant, being largely held in relationship to an already prior unity.