Who is Feodor Dostoevsky from Russian Thinkers and what is their importance?

Feodor Dostoevesky is considered one of Russia's most important novelists. Born to an alcoholic father, Feodor suffered from periodic attacks of epilepsy from the age of ten. After graduating from officers' school, he became a part of the Petrashevsky Circle in the 1940s. The Circle was made up of discontented young educated Russians, including radical reformers and conspirators, many of whom were arrested and tried after the 1848 revolutions, Dostoevsky included. Sentenced to death for reading aloud the famous letter of Vissarion Belinsky denouncing Gogol, his sentence was commuted at the last minute. His punishment..... eight years of exile in the Siberian city of Omsk.