Book excerpt: Pavel Florensky (1882–1937) was a Russian philosopher, theologian, and scientist. He was considered by his contemporaries to be a polymath on a par with Pascal or Da Vinci. This book is the first comprehensive study in the English language to examine Florensky's entire philosophical oeuvre in its key metaphysical concepts. For Florensky, antinomy and symbol are the two faces of a single issue—the universal truth of discontinuity. This truth is a general law that represents, better than any other, the innermost structure of the universe. With its original perspective, Florensky’s philosophy is unique in the context of modern Russian thought, but also in the history of philosophy per se.