Critique of Judgement by Immanuel Kant Chapter 25 Page 8

there is nothing so small, which does not admit of extension by our Imagination to the greatness of a world, if compared with still smaller standards. Telescopes have furnished us with abundant material for making the first remark, microscopes for the second. Nothing, therefore, which can be an object of the senses, is, considered on this basis, to be called sublime. But because there is in our Imagination a striving towards infinite progress, and in our Reason a claim for absolute totality, regarded as a real Idea, therefore this very inadequateness for that Idea in our faculty for estimating the magnitude of things of sense, excites in us the feeling of a supersensible faculty.

And it is not the object of sense, but the use which the Judgement naturally makes of certain objects on behalf of this latter feeling, that is