 On a visit to Rome in 1882, Nietzsche, now at age thirty-seven, met Lou von Salomé (1861–1937), a 21 year old Russian woman who was studying philosophy and theology in Zurich. They had an active intellectual relationship and Nietzsche appears to have fallen in love with her. Their relationship did not develop on a romantic level, and their friendship took a turn for the worse when Salomé and Paul Rée left Nietzsche and moved to Berlin. In the years to follow, Salomé would write a book about Nietzsche (Friedrich Nietzsche in seinen Werken [Friedrich Nietzsche in his Works]) in 1894, and would later become an associate of Sigmund Freud, who she met in 1911. Salomé’s insightful book on Nietzsche is one of the first to propose the division of Nietzsche’s writings into early, middle, and late periods.