According to most readers, the book “The Sperm Principle” is the best creation of Mikhail Litvak. In general, all of his books are very useful to read. They teach you to be happier and become a whole person. This book is intended for psychologists, psychotherapists and ordinary people. If you take this fact into account, you can immediately understand how competently it is written, which can satisfy the interest of a professional and be accessible to the common person. It contains tips for every day that will undoubtedly make your life a little better. The book is not about procreation, as the title might suggest, but about the fact that everyone can be happy. Everyone creates their own destiny and builds obstacles on the path to harmony with their own hands. The writer also gives examples of classics on the pages of his work. Seneca, Ovid, Nietzsche, Schopenhauer - they all helped to complement the author's theory. The book contains many examples from life, it is easy to read and can make everyone who reads it a little happier. The "sperm principle" has changed the lives of many people.