Lev Kamenev arrested in 1902, ending his formal education. From that point on, he worked as a professional revolutionary, and was active in the capital St. Petersburg, Moscow and Tiflis. He adopted the surname Kamenev during this period. In the early 1900s, he married Olga Bronstein, a fellow Marxist (and younger sister of Leon Trotsky, who had also adopted a different surname). The couple had two sons together. Kamenev joined the Communists in 1901. He took a brief trip abroad in 1902, meeting Russian social democratic leaders living in exile, including Vladimir Lenin, whose adherent and close associate he became. He also
Lev Shestov extreme human behavior probably coloured Bataille's own thoughts. These are Shestov's most important works, in their English translations, and with their date of "writing": Lev Shestov Lev Isaakovich Shestov (, 1866 – 1938), born Yeguda Leib Shvartsman (), was a Russian existentialist philosopher, known for his "philosophy of despair". Born in Kyiv (Russian Empire) on , he emigrated to France in 1921, fleeing from the aftermath of the October Revolution. He lived in Paris until his death on November 19, 1938. Shestov was born Lev Isaakovich Schwarzmann in Kiev into a Jewish family. He obtained an education at various places,