Lev tolstoy, (1828 ~1910)19, is the greatest Russian writer. Born into a noble family, 1840 entered Kazan University and was influenced by Rousseau, Montesquieu and other enlightenment thinkers. 1847 dropped out of school and returned to his hometown, trying to reform serfdom in his own territory. 185 1 ~ 1854 served in the Caucasian army and began to write. 1854 ~ 1855 participated in the Crimean war. Years of military life not only made him see the corruption of the upper class, but also laid the foundation for him to describe the war scene realistically in his masterpiece War and Peace.