If you want to expand your knowledge and be ahead of your fellow human beings, you should read the book. It clears up old folk wisdom and brings light into the darkness of advice that is over 100 years old. Science brings new knowledge every day and exposes old sayings and advice as half-truths or even lies. With the knowledge from the book you are definitely ahead of your fellow human beings.sen wants to expand and be ahead of your fellow human beings, the book should read It clears up old folk wisdom and brings light into the darkness of advice that is over 100 years old. Science brings new insights every day and exposes old sayings and advice as half-truths or even lies. With the knowledge from the book you are definitely ahead of your fellow men.