The second chapter places Walter Pater, the widely acknowledged founder of British aestheticism, in conversation with mathematician and philosopher W. K. Clifford in order to illuminate the overlapping development of aestheticism and evolutionism in the 1860s and 1870s. Around the same time that Pater made the case for “art for art’s sake,” Clifford laid out a sweeping secular humanism that reaffirmed an anthropocentric and pseudo-religious view of the cosmos. Clifford’s optimistic reinterpretation of evolutionary science, this chapter argues, reinforced and drew on Pater’s contemporary conception of the aesthetic temperament: a discriminating, tasteful personality capable of transforming, in Pater’s words, the “ghastly spectacle of the endless material universe” into the “delightful consciousness of an ever-widening kinship and sympathy.” The chapter concludes with an analysis of the work of Mathilde Blind, who synthesized Clifford’s and Pater’s ideas in a poetic oeuvre that sought to inculcate readers into reverent ways of experiencing an otherwise atheistic world.