This book, perhaps, everybody will understand, but each in its own way. However, nevertheless it is a textbook, at least, I very hope that he can become such. However, by a textbook, despite all warning of his author, I consider and Tractatus Logico - Philosophicus of Людвига Витгенштейна. Apparently, I understand a "textbook" in some other "sense". From this "dispute" in that never gave birth, and could not be born no "truth", I and pushed off, beginning it prosecution of this text, a form of that, largely, is contribution of my admiration "divine Людвигом".A book calls to my own problem that, however, I consider universal. We vegetate in the world of signs, where every attempts to talk about reality - and vain, and absurd. We do not notice that signs already a long ago substituted every reality for us, and we operate by them so, as if they and I am - some authentic reality, what is, on business, cleanest water of "metaphysician"..In essence, my treatise that a man must understand, about what he can know and that he is necessary to think. However, although, as me it seems to, answers for these questions and found mainly finally, a task can not be considered decided. And all of it only superfluous time testifies to that, how small to the use in answers, let them be most remarkable, if it only answers.