By examining the motif of ruination in a variety of late-18th-century domains, this book portrays the moral aesthetic of the culture of sensibility in Europe, particularly its negotiation of the demands of tradition and pragmatism alongside utopian longings for authenticity, natural goodness, self-governance, mutual transparency, and instantaneous kinship. This book argues that the rhetoric of ruins lends a distinctive shape to the architecture and literature of the time and requires the novel to adjust notions of authorship and narrative to accommodate the prevailing aesthetic. Just as architects of 18th-century follies pretend to have discovered "authentic" ruins, novelists within the culture of sensibility also build purposely fragmented texts and disguise their authorship, invoking highly artificial means of simulating nature. The cultural pursuit of human ruin, however, leads to hypocritical and sadistic extremes that put an end to the characteristic ambivalence of sensibility and its unusual structures.