He studied history, philosophy, and political science at Moscow University, graduating in 1894.
From graduation until the Bolshevik revolution he was unable to obtain an official academic position because he was Jewish.
He had a common-law relationship with Maria Goldenveizer from 1904 (Jews and Orthodox Christians were unable to marry legally); they had a daughter and a son.
During the Civil War he worked in various sections of the People's Commissariat for Education (Narkompros).
He was first chair of the Moscow Writers' Union in 1918 and of the All-Russian Writers' Union in 1920–21, during which years he was also a member of the leadership of Narkompros; he was head of the literary section, Moscow Academy of Artistic Sciences from 1922 to 1925.