About the book: 2003 / The book is a collection of essays - memories of some outstanding Russian physicists, with whom the author was more or less close for decades, as well as memories of N. Bohr and an essay about W. Heisenberg. Almost all the essays have already been published, but new times and the opening of archives have made it possible to significantly supplement them. It goes without saying that they are united by the problem that gave the collection its name. For a wide range of readers interested in the life of scientists of the 20th century with its plague of totalitarianism.