The book is based on memoirs, diary entries, correspondence and interviews of Anna Alekseevna Kapitsa (1903–1996) - the daughter of the greatest Russian engineer A. N. Krylov and the wife of the outstanding scientist - academician, Nobel Prize laureate Pyotr Leonidovich Kapitsa (1894-1984) . The time covered in these materials includes the three Russian revolutions, the Civil and Great Patriotic Wars, the Stalin era, the years of Brezhnev stagnation and the beginning of perestroika. A living, interested personality appears in the texts, connected by many connections with different people and events, the 20th century takes on a new dimension. The book was prepared by E. L. Kapitsa and P. E. Rubinin, the personal trusted assistant of Academician P. L. Kapitsa, and supplied explanatory articles and necessary comments. Designed for the widest circles of readers.