Pavel Florensky (21 January 1882 – December 8, 1937) was a Russian Orthodox theologian, priest, philosopher, mathematician, physicist, electrical engineer, inventor, polymath, neomartyr and folk saint.
His father came from a family of Russian Orthodox priests while his mother, Olga Saparyan, was of the Tbilisi Armenian nobility in Georgia.
His manner of continuing to wear priestly garb annoyed his employers.
 
Pavel Florensky― certainly the greatest Russian theologian of the last century― is now recognized as one of Russia’s greatest polymaths. Known as the Russian Leonardo da Vinci, he became a Russian Orthodox priest in 1911, while remaining deeply involved with the cultural, artistic, and scientific developments of his time. Arrested briefly by the Soviets in 1928, he returned to his scholarly activities until 1933, when he was sentenced to ten years of corrective labor in Siberia. There he continued his scientific work and ministered to his fellow prisoners until his death four years later. This volume is the first English translation of his rich and fascinating defense of Russian Orthodox theology.
Originally published in 1914, the book is a series of twelve letters to a “brother” or “friend,” who may be understood symbolically as Christ.

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