Leo Tolstoy then spent much of his time in Moscow, Tula and Saint Petersburg, leading a lax and leisurely lifestyle. He began writing during this period, including his first novel "Childhood", a fictitious account of his own youth, which was published in 1852. In 1851, after running up heavy gambling debts, he went with his older brother to the Caucasus and joined the army. Tolstoy served as a young artillery officer during the Crimean War and was in Sevastopol during the 11-month-long siege of Sevastopol in 1854–55, including the Battle of the Chernaya. During the war he was recognised for his bravery
What Is Mathematics? alone held the copyright for the book. This resulted in Robbins receiving a smaller share of the royalties. Michael Katehakis remembers Robbins' interest in the literature and Tolstoy in particular and he is convinced that the title of the book is most likely due to Robbins, who was inspired by the title of the essay What is Art? by Leo Tolstoy. Robbins did the same in the book " Great Expectations : The Theory of Optimal Stopping " he co-authored with Yuan-Shih Chow and David Siegmund, where one can not miss the connection with the title of the novel "Great