Why are you reading these lines now? We can assume that you found the title of the book interesting or simply liked the cover. But not everything is so simple. Hundreds of decisions that we make every day are actually carried out by our brain, following algorithms known only to it. Since ancient times, people have been interested in the structure of our minds. And at all times, the incomprehensibility of the brain provoked the birth of myths and superstitions. However, even today, despite all the technical achievements of the 21st century, scientists are not ready to admit that they are closer to understanding the central organ of the nervous system. In this book we will talk about the eternal desire of people to penetrate the secrets of the mind, we will analyze the mistakes of scientific authorities and the speculations of amateurs, which unexpectedly developed years later and contributed to progress in medicine.