The book "The disease of the soul: the disease of the century" by the famous French writer Paul Charpentier opens to the reader a frank and deep look into the universal problem of inner suffering. The author uses his extensive experience as a doctor and moralist to analyze and understand the psychological and emotional aspects that arise in modern society. The book "The disease of the soul: the disease of the century" appeals to the depths of the human soul, revealing the secrets of consciousness and feelings that dictate our attitude to ourselves and the environment. In his treatises, Charpentier offers his own view on the causes and consequences of the "disease of the century", trying to give the reader a new light for understanding himself and the world.