Nadezhda Ivanovna Sergeeva: the lessons of life

The publication is devoted to Nadezhda Ivanovna Sergeeva (1920-2011), the wonderful pedagogue and scientist, Honored worker of higher school of Russian Federation, honorary professor of the St. Petersburg state university of culture and arts. The authors give biographic information, facts of a labor activity, the memories of teachers and adherents. The estimation is given to scientific research Nadezhda I. Sergeeva, connected with the history of Russia of the XVIIIth - XXth centuries, her organizational skills, personal qualities. The article is written in memory of a colleague, who died on 12 December 2011.