Repositioning Walter Pater at the philosophical nexus of Aestheticism, this study presents the first discussion of how Pater redefines Romantic Individualism through his engagements with modern philosophical discourses and in the context of emerging modernity in Britain. It also considers the dynamics between form and thought at the fin de siècle, contextualizing its comments in terms of Matthew Arnold, Oscar Wilde and Vernon Lee and others, to offer a fully integrated account of the intellectual cultures and currents in this period.