About the book: year / We often discuss with loved ones, friends and acquaintances, or just think, alone with ourselves, about this: what is the Most Important in our life? There may be many answers... However, in fact, there is only one correct answer and, according to the author, it is in this book. To make it easier for readers to understand what's what, let's say the following. The famous scientist, professor, doctor of technical sciences, Vasily Pavlovich Goch, in his book “The Theory of Causality” writes that the butterfly is a sign of the Creator. That is why butterflies are depicted on the covers of this book. This book is intended for a wide range of readers.