This book is about how to behave and how not to behave at work, at the institute, in the family, in the theater, at the stadium. This book is about a culture of behavior that is related to the inner culture of a person. The book tells about modern ethics, about the norms of behavior that have developed in us, not only good advice is given, but also serious material for thought. This is the second, supplemented edition. A significant part of the book is made up of answers to readers' letters received by the author after the release of the first edition.