The book is devoted to the formation of the mechanisms of the human brain. The patterns of development of primary, secondary and tertiary consciousness, which depend on the main stages of brain maturation, are highlighted. The nature of the contradictions of thinking, which takes shape in the maturation of the brain, and is consolidated by sexual and social instincts as a result of artificial selection, is considered. Attention is paid to the aging of consciousness along with the involution of the nervous system. The publication is intended for parents who do not want to repeat themselves in children, connoisseurs of dangerous figures of thought and sybarites of refined consciousness.