What does a modern educated person know about Pythagoras? A couple of theorems from a school textbook, a dozen sayings from a common collection of aphorisms of the sages, and an incoherent set of phrases from a university course on the history of philosophical teachings. Meanwhile, Pythagoras not only came up with the famous theorem, but also created the first philosophical school in Hellas and the project of the first theater. It is in the Pythagorean teaching that the roots of the Academy and the Lyceum go, not to mention the Roman civil virtues. This book for the first time collects all the written messages of ancient authors about Pythagoras and his teaching that have reached us. Everyone in this book will discover what corresponds to the level of their spiritual ascent , - the initiate will see behind the hostile word the greatness of the absolute, the seeker of wisdom will discover among the unclear symbols a lot of useful things for his own development and improvement of the nature of his family and friends. This book will be useless only for those who are obsessed with spiritual laziness and do not feel any desire to know this brilliant world that was revealed to them so briefly...