Leo Tolstoy
Commonly cited as one of the greatest authors ever, Tolstoy was a 19th century Russian most famous for his works "War and Peace."(1869) and "Anna Karenina." (1878) among many other great works of literature. He also wrote many profound essays, a lot of which revolved around Christianity.
Leo Tolstoy's "War and Peace" is most probably the best work of fiction to have ever been written. Through central characters Count Pierre Bezuhov and Prince Andrei Bolkonsky, the greatest spiritual and ethical questions of life are explored through embarkations on monumental journeys.