The personal diaries of the Honored Scientist of the Russian Federation, Honorary Professor of Saratov University O.B. Sirotinina, whose 100th anniversary is celebrated this year, were written by her in the pre-war (since 1939) and war years. They reflected both the scale of the future personality of this very then still young girl, and the era of severe trials in the life of our country. Written with the utmost sincerity, sometimes youthful maximalism, they amaze with the depth of thought and the breadth of erudition.