Marxism was not the only Western idea to influence the course of Russian history. In the early decades of this century, psychoanalysis was one of the most important components of Russian intellectual life. Freud himself, writing in 1912, said that "in Russia, there seems to be a veritable epidemic of psychoanalysis." But until Alexander Etkind's Eros of the Impossible, the hidden history of Russian involvement in psychoanalysis has gone largely unnoticed...