Celebrating the anniversary of the Yalta Conference, F. Roosevelt, I. Stalin, W. Churchill and the famous figures of world history, philosophers and scientists invited by them discuss its lessons, as well as key problems in the development of political institutions from antiquity to the present day, taking into account the peculiarities of mass and individual psychology. The study is conducted from a position denying Marxist (materialist) historiosophy, in the form of dialogues between the participants of the round table.