Amazon.com description: Product Description: Hume's discussion of the idea of space in his Treatise on Human Nature is fundamental to an understanding of his treatment of such central issues as the existence of external objects, the unity of the self, and the relation between certainty and belief. Marina Frasca-Spada's rich and original study examines this difficult part of Hume's philosophical writings and connects it to eighteenth-century works in natural philosophy, mathematics and literature. Her analysis points the way to a reassessment of the central current interpretative questions in Hume studies.